feature [ˈfiːtʃər] n. 特征,特点
characteristic [ˌkærəktəˈrɪstɪk] n. 特征
property [ˈprɑːpərtɪ] n. 特性;财产;地产同的
trait [treɪt] n. 特点,特征
quality [ˈkwɑːlətɪ] n. 特征;性质;质量
distinctive [dɪˈstɪŋktɪv] adj. 独特的,不
(distinction [dɪˈstɪŋkʃn] n. 差别;特点)
distinguish [dɪˈstɪŋɡwɪʃ] v. 区分,辨别
differentiate [ˌdɪfəˈrenʃɪeɪt] v. 区别,区分
divide [dɪˈvaɪd] v. 分开,分割
separate [ˈsepreɪt] v. 分开,分离
identical [aɪˈdentɪk(ə)l] adj. 相同的
imitate [ˈɪmɪteɪt] v. 模仿
resemble [rɪˈzembl] v. 类似,像
similar [ˈsɪmələr] adj. 类似的
relevant [ˈreləvənt] adj. 相关的
counterpart [ˈkaʊntərpɑːrt] n. 相对物
complement [ˈkɑːmplɪment] v. 补充,补足
supplement [ˈsʌplɪmənt] v. 补充,增补
rather [ˈræðər] adv. 相反
rather than 而不是
compare [kəmˈper] v. 比较,对比
contrast [ˈkɑːntræst, kənˈtræst] n.&v. 对比
conversely [ˈkɑːnvɜːrslɪ] adv. 相反地
● The main chemical constitution of volcanic (火山的) gases is water vapor, with varying amounts of nitrogen (氮气) , carbon dioxide, and other gases.
● Gas mixtures emitted (释放) from present-day volcanoes resemble Earth's earliest atmosphere, suggesting its origin from volcanic eruptions.
● Coral reefs (珊瑚礁) are natural structures formed from deposits (沉淀) of the calcium carbonate secretions (分泌物) of coral, a marine animal that lives in colonies. In general, coral reefs are grouped into one of three categories, atolls,barrier reefs, and fringing reefs. Atolls are usually easily distinguished because they are modified horseshoe-shaped reefs that rise out of very deep water far from land.