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background['bækgraund]
n.背景；背景资料；幕后
【例句】Can you give me more background on the company's financial position?
你能向我多提供一些有关该公司财务状况的资料吗？
balance['bæləns]
n.平衡；天平；结存
【例句】Try to achieve a better balance between work and play.
争取把工作和娱乐更好地结合起来。
vt.使平衡；权衡
【例句】This year's profits will balance our previous losses.
本年度的盈利将与上一年度的亏损相抵。
bald[bɔ:ld]
a.①秃（头）的
【例句】The dog has a bald patch on its leg.
狗的腿上秃了一块。
②无装饰的，简单的
【例句】She gave a bald statement of the facts.
她对事实做了直截了当的陈述。
ban[bæn]
vt.禁止，取缔
【例句】The government has banned the use of chemical weapons.
政府已经禁止使用化学武器。
n.禁令；禁止
【例句】The government put a ban on the import of alcohol.
政府宣布禁止酒类进口。
bankrupt['bæŋkrʌpt]
a.①破产的，无力还债的
【例句】If the firm cannot sell its products,it will go bankrupt.
如果那家公司产品滞销，它将会破产。
②缺乏（某种美德）的
【例句】The opposition attacked the government as morally bankrupt.
反对党指责政府道德沦丧。
bankruptcy['bæŋkrʌptsi]
n.破产；倒闭
【例句】When inflation rises,so do bankruptcies.
通货膨胀出现时，倒闭也会随之出现。
bare[bεə]
a.①赤裸的
【例句】She felt the sun warm on her bare arms.
阳光照在她赤裸的胳膊上，她感觉很温暖。
②无遮蔽的，暴露的
【例句】This historical writing seeks to lay bare
the true nature of an event.
这部历史作品试图揭示该事件的真相。
v.使赤裸，暴露
【例句】He bared his back to the hot sun.
他裸着背，对着火热的太阳。
barely['bεəli]
ad.几乎不，勉强地
【例句】We could barely see the road in the fog.
在雾中，我们几乎看不清道路。
bargain['ba:gin]
n.①协议；交易
【例句】The bargain they reached with their employers was to reduce their wage claim in return for a shorter working week.
与雇主达成的协议是他们在工资方面降低要求，但每周工时要缩短。
②便宜货，廉价货
【例句】The skirt is a real bargain at such a low price.
这件裙子价钱这么低，确实便宜。
v.议价，讨价还价
【例句】The unions bargained with management for a shorter working week.
工会为缩短工作周而与资方讨价还价。
barren['bærən]
a.①不孕的
【例句】Barren women are rejected by the tribesmen.
不能生育的妇女受到部落男子的排斥。
②不结果的，贫瘠的
【例句】The land still remained barren.
土地仍然贫瘠。
③无用的；无结果的
【例句】Our team will come through this barren patch and start to win again.
我们队将会度过这段低潮时期并再创佳绩。
barrier['bæriə]
n.①障碍物；栅栏；屏障
【例句】The mountains form a natural barrier
between the two countries.
这些山脉构成了两国之间的天然屏障。
②隔阂，障碍
【例句】Poor health may be a barrier to success.
健康欠佳可能成为取得成功的障碍。
bear[bεə]（bore,borne）
v.①运送，携带
【例句】The canoe was borne along by the current.
那独木舟顺流而下。
②支撑，承担
【例句】He's a carefree fellow who bears his responsibilities lightly.
他是个满不在意、不大负责的人。
③具有，显出
【例句】A married woman usually bears her husband's surname.
女子出嫁以后通常随夫姓。
④忍受，容忍
【例句】She bore her sorrow without complaint.
她毫无怨言地忍受着悲痛。
bearing['bεəriŋ]
n.①举止，风度
【例句】Her dignified bearing fascinates many people.
她端庄的举止迷倒了很多人。
②关系，影响
【例句】What he said had not much bearing on the problem.
他说的话跟这个问题没有多大关系。
beforehand[bi'fɔ:hænd]
ad.事先，预先
【例句】We were aware of the problem beforehand.
我们事先就知道有这个问题。
behalf[bi'ha:f]
n.利益；方面
（on behalf of sb./on sb.'s behalf）
①代表（或代替）某人
【例句】On behalf of my colleagues and myself,I thank you.
我代表我的同事以及我自己向你表示谢意。
②因为某人；为了某人
【例句】The legal guardian must act on behalf of the child.
法定监护人应该维护这个孩子的利益。
behave[bi'heiv]
v.①表现
【例句】She behaves(towards me)more like a friend than a mother.
她像朋友一样待我，而不像是我的母亲。
②（yourself）表现得体；有礼貌
【例句】Children,please behave(yourselves)!
孩子们，规矩些！
日期：2014年__月__日；时间：__分钟；任务：50个单词
behavior[bi'heiviə]
n.行为；举止；态度
【例句】We are trying to understand the causes of criminal behaviour.
我们试图了解犯罪行为背后的动机。
belong[bi'lɔŋ]
v.(to)属于
【例句】He has never belonged to a trade union.
他从未加入过工会。
belongings[bi'lɔŋiŋz]
n.所有物，财产，财物
【例句】He lost all his belongings in the fire.
他在火灾中失去了全部财产。
beloved[bi'lʌvd]
a.深爱的
【例句】This man was beloved by all who knew him.
认识他的人都很喜欢他。
n.深爱的人
【例句】He wrote a sonnet to his beloved.
他写了一首十四行诗，献给他心爱的人。
bend[bend]
v.①（使）弯曲
【例句】It's hard to bend an iron bar.
把铁棒弄弯很不容易。
②专注于
【例句】He couldn't bend his mind to his studies.
他不能专心学习。
n.（尤指道路或溪流的）弯曲处
【例句】Be careful about the sharp bend in the road.
注意道路的急转弯。
beneath[bi'ni:θ]
prep.①在……之下；在……正下方
【例句】The boat sank beneath the waves.
小船淹没在浪涛中。
②与……不相称；不值得
【例句】He considers such jobs beneath him.
他认为做这样的工作有失身份。
benefit['benifit]
n.好处，利益
【例句】A change in the law would be to every-one's benefit.
法律中的一项修改将符合所有人的利益。
v.有益于，有助于
【例句】These facilities have benefited the whole town.
这些设施使全城受益。
beneficial[beni'fiʃəl]
a.有益的，有用的
【例句】Fresh air is beneficial to one's health.
新鲜空气有益于健康。
bet[bet]
n.打赌
【例句】We made a bet on the outcome of the next election.
我们就下次选举的结果打了赌。
v.①下赌注，（与……）打赌
【例句】She bet me 200 yuan that I wouldn't be able to give up smoking.
她和我打200元的赌，说我戒不了烟。
②敢于肯定；预言
【例句】I bet he arrives late,he always does.
我敢肯定他得迟到，他一贯如此。
betray[bi'trei]
v.①背叛；出卖
【例句】In failing to return the money he betrayed our trust.
他未能归还那笔钱，辜负了我们的信任。
②泄露
【例句】She said she was sorry,but her eyes betrayed her secret delight.
她说她很难过，但眼神里却流露出内心的喜悦。
beware[bi'weə]
v.当心，注意
【例句】Beware,wet paint!
注意，油漆未干!
bewilder[bi'wildə]
v.使困惑
【例句】I am totally bewildered by the clues to this crossword puzzle.
这个纵横字谜的提示完全把我弄糊涂了。
bias[baiəs]
n.①偏见，成见
【例句】The committee is of/has a conservative bias.
委员会有一种保守的偏见。
②思想倾向，偏爱
【例句】His scientific bias showed itself in early childhood.
他的科学头脑早在儿童时代就已显现出来了。
v.使倾向一方
【例句】The newspaper is clearly bias(s)ed in the government's favour.
报纸很明显是偏向政府的。
biased['baiəst]
a.有偏见的；倾向性的
【例句】Of course I'm biased,but I thought my daughter's paintings were the best.
当然我偏心了，但我觉得女儿的绘画是最好的。
bid[bid]
v.出价；投标
【例句】She bid 500 pounds for the painting.
她喊价500英镑买这幅画。
n.出价；投标
【例句】Several firms have bid for the contract to build the new concert hall.
有几家公司投标，争取建造新音乐厅的合同。
bind[baind]
vt.①捆，绑
【例句】They bound his legs together so he couldn't escape.
他们将他的双腿捆在一起使他无法逃跑。
②约束，迫使
【例句】The judge bound the defendant to pay a debt.
法官让被告必须还债。
bizarre[bi'za:]
a.古怪的；奇异的
【例句】The dancers are in rather bizarre costumes.
那些舞者都穿着奇装异服。
blackmail['blækmeil]
n./v.勒索；敲诈
【例句】He was blackmailed by an enemy agent into passing on state secrets.
敌特威胁他要他交出国家机密。
blame[bleim]
v.责怪，把……归咎于
【例句】A bad workman blames his tools.
拙匠埋怨工具差（不承认错在自己）。
n.（对坏事所应负的）责任
【例句】Where does the blame for our failure lie?
我们失败的症结在哪里？
blank[blæŋk]
a.①无字迹的；空白的
【例句】Write on one side of the page and leave the other side blank.
在这页的一边写字，另一边空着。
②空虚的；无表情的
【例句】Suddenly my mind went blank.
猛然间我的脑子里一片空白。
n.①空白处
【例句】Fill in all the blanks on the form.
请填写表上全部空栏。
②（记忆中的）空白，遗忘
【例句】My mind/memory was a complete blank,I couldn't think of a single answer.
我记忆里完全是一片空白，连一个答案也想不出。
v.①毫不理睬
【例句】When I saw her this morning,she totally blanked me.
我今天早晨见到她时，她连一眼都没瞧我。
②突然忘掉
【例句】I knew the answers,but I totally blanked during the test.
我本来知道答案，但考试时什么都忘了。
bleak[bli:k]
a.①阴冷的；凄凉的
【例句】They departed on a bleak winter day.
他们在一个阴冷的冬日分手了。
②没有希望的，黯淡的
【例句】The future looks bleak.
前途黯淡。
blend[blend]
vt.混合，调和
【例句】Those cottages blend perfectly with the landscape.
那些农舍与周围的风景完全融为一体了。
n.混合物，混成品
【例句】His manner is a blend of charm and politeness.
他的举止既充满魅力，又彬彬有礼。
bless[bles]
v.祈求上帝保佑，求神赐福于
【例句】The priest blessed the harvest.
牧师祈求丰收。
be blessed with 赋予；享有
【例句】He is blessed with excellent health.
他身体好极了，真有福。
blessed['blesid]
a.幸运的，有福的
【例句】Blessed are the meek.
温顺的人有福气。
blessing['blesiŋ]
n.祝福，保佑
【例句】What a blessing you weren't hurt in the accident!
你在这次事故中没有受伤，真是幸运!
blind[blaind]
a.①瞎的，失明的
【例句】Doctors think he will go blind.
医生们认为他会失明。
②缺乏识别能力的，视而不见的
【例句】I must have been blind not to realize the danger we were in.
我一定是瞎了眼，连我们身临险境也看不出来。
v.①使失去视力
【例句】The glare of the headlights blinded me for a moment.
耀眼的汽车前灯照得我一时什么也看不见。
②使失去理解力或判断力
【例句】His stubborness blinded him to all the difficulties.
他的执拗使他看不到一切困难。
block[blɔk]
n.①一大块
【例句】The floor was made of wooden blocks.
地板是用木板拼成的。
②栋，座，幢
【例句】I live in a block of flats.
我住在一幢公寓大楼里。
③（美）街区
【例句】He lives three blocks away from here.
他住的地方与此处相隔三条街。
④障碍，堵塞物
【例句】The government's stubborn attitude was a block to further talks.
政府的僵硬态度是进一步会谈的障碍。
v.阻挡，堵塞
【例句】The accident blocked traffic in the town centre.
事故阻塞了市中心的交通。
bloom[blu:m]
n.花
【例句】These roses have beautiful blooms.
这些玫瑰花开得真美。
v.开花
【例句】Most roses will begin to bloom from late May.
大多数玫瑰从5月末开始开花。
in(full)bloom 鲜花盛开
【例句】The tulips are in full bloom.
郁金香花儿盛开绽放。
blossom['blɔsəm]
n.花（朵、簇）
【例句】The apple trees are in blossom.
苹果树正在开花。
v.①开花
【例句】The cherry trees blossomed early this year.
樱桃树今年开花早。
②成长，繁荣
【例句】She has blossomed into a beautiful young woman.
她亭亭玉立，已经出落成了美丽的少女。
blunder['blʌndə]
n.愚蠢之错，疏忽
v.①犯大错
【例句】The police blundered badly by arresting the wrong man.
警方抓错了人，犯了荒唐的大错。
【例句】She blundered in not packing a raincoat for her trip to England.
她去英国旅行没带雨衣，犯了大错。
②瞎闯，跌跌撞撞
【例句】In the darkness,he blundered into the hall table.
黑暗中他撞着了大厅里的桌子。
blunt[blʌnt]
a.①钝的，不锋利的
【例句】My pencil's blunt,can I borrow your sharpener?
我的铅笔钝了，能用用你的削铅笔刀吗？
②直言不讳的
【例句】Let me be quite blunt with you your work is appalling.
对你直说吧，你的工作太差劲。
v.把……弄钝；减弱
【例句】The bad weather blunted their enthu-siasm for camping.
天公不作美大大减弱了他们去露营的热情。
blur[blə:]
n.模糊不清的事物，污点
【例句】The town was just a blur on the horizon.
朝地平线望去，小城一片朦胧。
v.使模糊
【例句】Her eyes blurred with tears.
她泪眼朦胧。
board[bɔ:d]
n.①木板，硬质板
【例句】I want to play chess but I can't find the board.
我想下棋，可是找不到棋盘。
②膳食
【例句】He pays 40 pounds a week for board and lodging.
他每周支付膳宿费40英镑。
③理事会，董事会
【例句】She has a seat on the board of directors of a large company.
她是某大公司董事会成员之一。
v.①登上（船或公共交通工具）
【例句】Please board the plane immediately.
请立刻上飞机。
②为……提供膳宿；寄宿
【例句】She usually boards students during the college term.
她经常在学期中给学生提供膳宿。
boast[bəust]
v.①(about/of)夸耀，吹嘘
【例句】He's always boasting about his children's success at school.
他总是夸耀他的孩子们学习成绩好。
②（事物）以……为豪
【例句】The town boasts a world-famous art gallery.
这个镇子引以为荣的是有个闻名于世的美术馆。
n.自夸，吹嘘
【例句】His boast that he could drink ten bottles of beer impressed nobody.
他自吹自擂说能喝十瓶啤酒，但无人理睬他。
boastful['bəustful]
a.自吹自擂的
【例句】I tried to emphasize my good points without sounding boastful.
我在强调自己的优点时尽量不让人觉得我是在自我吹嘘。
bold[bəuld]
a.①勇敢的，无畏的
【例句】He put forward bold scheme to rebuild the city center.
他提出了一个重建城市中心的大胆规划。
②无耻的，冒失的
【例句】She waited for him to invite her to dance,not wishing to seem bold.
她等他邀请自己跳舞，而不愿显得失慎。
③黑体的，粗体的
【例句】The headwords in this dictionary are in bold type.
本词典的词条用的是粗体字。
bond[bɔnd]
n.①纽带，维系
【例句】The trade agreement helped to strengthen the bonds between the two countries.
这项贸易协定有助于加强两国之间的联系。
②契约，盟约
【例句】We entered into a solemn bond.
我们缔结了一项正式协定。
③债券，公债
【例句】My father put all his money into British Railway bonds.
我父亲把他所有的钱都投到了英国铁路的债券上。
v.（使）黏合
【例句】This new glue bonds a variety of surfaces in seconds.
这种新型胶水迅速黏牢各种材质的面板。
bonus['bəunəs]
n.①奖金；红利
【例句】The staff got a Christmas bonus.
员工在圣诞节得到了奖金。
②意外的好处
【例句】The warm weather in winter has been a real bonus.
冬天有这样暖和的天气真是喜出望外。
boom[bu:m]
v.①发低沉声，隆隆作响
【例句】The great bell tolled with a deep boom.
大钟嘡嘡地发出低沉的回响。
②激增，兴隆
【例句】Business is booming.
生意日趋繁荣。
n.①隆隆声，叫喊声
【例句】The new aircraft creates a sonic boom.
那种飞机会产生声震。
②繁荣，景气
【例句】There's been a boom in imports this year.
今年的进口量激增。
boost[bu:st]
vt.①推起，提升
【例句】If you boost me up,I can just reach the window.
假如你托我一把，我正好可以够到窗户。
②增加，提高
【例句】These changes will help to boost share prices.
这些变化将有助于提高股票价格。
n.①推起
【例句】He gave her a boost over the fence.
他推了她一把，帮她翻过围墙。
②促进，激励
【例句】Winning the competition was a wonder-ful boost for her morale.
赢得了那场比赛使她士气大振。
bore[bɔ:]
n.令人厌烦的人（事物）
【例句】She's become an awful bore since she got married to him.
她自从与他结婚后，就变得令人厌烦极了。
vt.①使厌烦
【例句】He bored us all by talking for hours about his new car.
他连续几个钟头大谈他的新车，使我们大家都感到厌烦。
②钻孔，开凿
【例句】Worms have bored into the wood.
虫子已蛀穿了木料。
bored[bɔ:d]
a.厌倦的；烦闷的
【例句】The children quickly got bored with staying indoors.
孩子们在屋子里很快就待不住了。
boredom['bɔ:dəm]
n.厌烦；无聊
【例句】Television helps to relieve the boredom of the long winter evenings.
电视机有助于打发漫长无聊的冬夜。
bounce[bauns]
v.①弹回，反弹
【例句】The ball hit the wall and bounced off it.
球打在墙上又反弹回来。
②蹦蹦跳跳
【例句】She bounced into the room.
她蹦蹦跳跳地走进房间里。
n.跳起，反弹
【例句】He had not reached the ball before its second bounce.
在球第二次弹起之前，他还没有触到球。
bother['bɔðə]
v.打扰，使苦恼
【例句】What bothers me most is the fact that he seems to take no interest in his work.
最使我伤脑筋的是，他似乎对自己的工作毫无兴趣。
n.麻烦，忧虑
【例句】I don't want to put you to any bother.
我不想给你添乱。
bound[baund]
a.①肯定的，必然的
【例句】It's bound to rain soon.
过一会儿肯定会下雨。
②负有义务的，理应……的
【例句】You are legally bound to answer these questions.
在法律上你有义务回答这些问题。
n.跳跃，跃起
【例句】With one bound,he was over the wall.
他纵身一跃就跳过了墙。
v.跳跃
【例句】The dog bounded down the hill.
那条狗跳跃着朝山下跑去。
boundary['baundəri]
n.界限，范围
【例句】The boundaries of human knowledge are constantly being extended.
人类知识的范围在不断地扩展。
日期：2014年__月__日；时间：__分钟；任务：50个单词
boycott['bɔikət]
v.抵制，排斥
【例句】They're boycotting the shop because the people there are on strike.
他们抵制那家商店，因为那里的店员在罢工。
brand[brænd]
n.①商标，牌子
【例句】What is your favorite brand of cigarettes?
你最喜欢哪种牌子的香烟？
②烙印
【例句】These cattle have my brand on them.
这些牛身上打了烙印，表明是我的牛。
v.给……打上烙印
【例句】His unhappy childhood has branded him for life.
不愉快的童年在他心灵上留下了终生的烙印。
breach[bri:tʃ]
n.违反；破坏
【例句】These working practices are in breach the safety regulations.
这些工作程序违反了安全规则。
v.违背
【例句】These commitments have already been breached.
这些承诺已遭背弃。
breakdown['breikdaun]
n.故障；崩溃
【例句】Our car had a breakdown on the road.
我们的汽车在路上抛锚了。
breathtaking['breθ,teikiŋ]
a.①使人兴奋的，激动人心的
【例句】The scene was one of breathtaking beauty.
美妙的景色令人叹为观止。
②吃惊的，震惊的
【例句】He spoke with breathtaking arrogance.
他说话时的傲慢态度令人咂舌。
breed[bri:d]
v.①（动物）繁殖，下崽
【例句】Some animals will not breed if they are kept in cage.
有些动物关在笼子里就不繁殖。
②饲养，培植
【例句】They've bred a new variety of rose with larger flowers.
他们栽培了能开大花朵的新品种玫瑰花。
③引起，招致（不良后果）
【例句】All this uncertainty breeds insecurity.
这样变来变去使人产生不安全感。
n.品种
【例句】It is the first of a new breed of satellite.
这是第一颗新型人造卫星。
bribe[braib]
v.向……行贿，收买
【例句】I bribed him into giving me the documents.
我向他行贿，让他给我提供了文件。
n.贿赂
【例句】The policeman was accused of accepting bribes.
该警察被控告受贿。
bribery['braibəri]
n.行贿，受贿
【例句】He was arrested on bribery charges.
他因被控贿赂罪而遭逮捕。
brief[bri:f]
a.短时间的，短暂的
【例句】Please be brief because I'm in a hurry.
我有急事，请长话短说。
n.任务；指示
【例句】I was given the brief of reorganizing the department.
我被分派去改组这个部门。
v.给……指示；为……提供咨询
【例句】Please brief astronauts before their mission.
在出发前请给宇航员做指示。
in brief 简而言之
【例句】In brief,the meeting was a disaster.
总之，那会议糟透了。
brilliant['briljənt]
a.①光辉夺目的，灿烂的
【例句】The sun shone in a brilliant blue sky.
太阳在明媚蔚蓝的天空中散发着光芒。
②聪颖的
【例句】She is one of the most brilliant minds in this industry.
她是这个行业最有才气的人之一。
③巧妙的；使人印象深刻的
【例句】What a brilliant idea!
真是个绝妙的主意！
brisk[brisk]
a.①轻快的；活泼的
【例句】His tone became brisk and businesslike.
他的语气变得自信、干练而务实。
②清新凉爽的
【例句】It blows a brisk breeze.
刮起了一阵凉爽的微风。
brittle['britl]
a.①易碎的
【例句】The china is brittle with age.
由于年代久远，这个瓷器变得容易破碎。
②脆弱的
【例句】My mother has a brittle temperament.
我的母亲性情脆弱。
browse[brauz]
v.①（through）随意翻阅，浏览（书刊等）
【例句】I spent hours browsing in the bookshop.
我花了几个小时在书店里翻阅图书。
②（牲畜）吃草
【例句】The cows browsed in the fields.
牛在田野里吃草。
bruise[bru:z]
n.伤痕，擦伤
【例句】It was a bad accident,but she escaped with minor cuts and bruises.
事故很严重，但她逃过了大难，只受了点轻伤。
v.使碰伤，擦伤
【例句】She fell and bruised her knee.
她跌倒了，膝盖被擦伤。
brute[bru:t]
n.①残忍的人，粗暴的人
【例句】His father was a drunken brute.
他父亲是个蛮横的酒鬼。
②牲畜，动物
【例句】The horse broke its leg when it fell and the poor brute had to be destroyed.
那匹可怜的马跌断了腿，人们只好把它宰杀了。
brutal['bru:tl]
a.无情的，野蛮的
【例句】I can't stand the brutal violations of human rights.
我无法忍受这种对人权的粗暴践踏。
brutalize['bru:təlaiz]
v.变得残忍；变得冷酷
【例句】Soldiers are brutalized by war.
士兵们在战争中变得残酷无情。
bully['buli]
n.恃强凌弱者，以大欺小者
【例句】He is the school bully.
他是学校的恶霸学生。
v.欺侮，仗势欺人
【例句】He bullies all the other little boys in the playground.
他在操场上称王称霸，欺侮其他小男孩。
bump[bʌmp]
v.①猛碰，撞
【例句】The car bumped the tree.
汽车撞在树上。
②颠簸
【例句】The cart bumped along the track.
马车在小路上颠簸着前进。
n.撞击
【例句】He fell off the bed and landed on the floor with a bump.
他从床上扑通一声滚到了地板上。
bump into 巧遇，邂逅，碰见
【例句】I bumped into an old college friend in the restaurant.
我在饭店里碰见了大学的一位老同学。
burst[bə:st]
v.①破裂；爆裂
【例句】We drove over some glass and one of our tyres bursts.
我们驶过一些玻璃碎片，汽车的一只轮胎就爆裂了。
②忽然出现
【例句】In spring the young flowers burst open.
春天百花绽蕾。
n.①破裂，裂口
【例句】There is a burst in the water pipes.
水管上有裂口。
②爆发；一下子
【例句】With a final burst of speed she overtook the leading runner and won the race.
她以最后一股劲猛冲，超越了领先的运动员，赢得了这场赛跑。
burst into 突然……起来（尤指哭、笑、唱等）
【例句】He bursts into laughter.
他突然哈哈大笑。