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All you need is Wi-Fi access and a laptop or tablet, and one doesn't have to commute from one place to another. Thus, one can save lots of valuable time and use the time to focus on other important stuff.
译文：你所需要的只是Wi-Fi接口和一台笔记本电脑或平板电脑，这样就不用往返于两地，可以节省很多宝贵的时间，并且可以用这些时间做其他重要的事情。
适用题目
Describe the disadvantages of shopping online. Please include details and examples in your explanation. [2012-4-14] [2016-7-2]
Some believe that online course should replace traditional classes. Others don't think so. What do you think? [2015-1-10]
Which of the following three do you think is the most important to you in your daily life? [2016-11-5]
A. Cell phone B. E-book C. Online course
Some people prefer to work in an office setting while others prefer to work at home. Which one do you prefer? [2015-5-24]