The table folds up when not in use.
这桌子不用时可以折叠起来。
Use the active voice when writing sentences.
造句时使用积极的语气。
Though Baldwin's use of an all-White cast seemed brave when the novel was first published, there were notable precedents.
尽管在小说刚出版时，鲍德温使用全白人演员的做法似乎很勇敢，但也有一些值得注意的先例。
In order to successfully refer when we use language, there must be an appropriate relationship between the speaker and the object referred to.
为了在我们使用语言时成功引用，说话者和被引用的对象之间必须有合适的关系。
We usually use this pattern when the question that you're asking about relates directly to the person you're speaking with.
当你问的问题与谈话的人直接相关时，我们通常会用这种方式。
The language and style you use when making an oral presentation should not be the same as the language and style you use when writing.
你在做口头报告时使用的语言和风格与你书写时用的不同。
You need to use the skills to control your pencil better when you are drawing pictures.
当你画画的时候，你需要使用这些技巧来更好地控制你的铅笔。
Like most tools, you need to know when and how to use it to the best advantage.
与大多数工具一样，您需要知道何时以及如何充分利用它。
The words themselves offer the clue as to when best to use them.
这些词本身就为我们提供了何时可以恰当使用它们的线索。
Vocabulary Hero may help you learn more English words while you're playing games, so if you have problems remembering the new words when you learn English, use it!
词汇英雄可以帮助你在玩游戏的时候学习更多的英语单词，所以如果你在学习英语的时候记生词有困难，就用它吧！
When we use the same praise repeatedly, it may become empty and no longer valued by the child.
当我们重复使用同样的表扬时，它可能会变得空洞，不再被孩子重视。
When it comes to the selling of houses, businesses also use highly rewarding tactics.
说到出售房屋，企业也会采用高回报的策略。
When parents give money to their kids, they should also teach them how to make the correct use of money.
当父母给他们的孩子钱的时候，他们也应该教他们如何正确使用钱。
I also mention in my book that when we use the OO paradigm, it is not easy to represent graphically at all times where our application is.
在书中我还提到，当我们使用OO范式的时候，要在任何时间图形化地表示出我们的应用程序在哪里并不容易。
When land gets developed for human use, the landscape changes.
当土地被开发为人类使用时，其地貌就会发生变化。
About 9% attempted to conceal "nonessential Internet use", and nearly 4% reported feeling "preoccupied by the Internet when offline".
约有9%的人试图隐瞒自己“非必要的上网行为”，近4%的人报告说，他们“离线时也感觉被网络占据着大脑”。
When not in use, the fins are tucked into special grooves or depressions so that they lie flush with the body and do not break up its smooth contours.
当鱼不使用鱼鳍时，会将它们折叠起来，收回到特殊的沟槽或者凹陷部位；这样鱼鳍就可以与身体保持齐平，以维持它们平滑的外形。
Social media screening is tempting to use as part of the hiring process, but should employers make use of it when researching a potential candidate's background?
把社交媒体审查作为招聘过程的一部分是很吸引人的，但雇主是否应该在调查潜在候选人的背景时利用它呢？
The period from 3000 to 1000 B.C.E., when the use of bronze became widespread, is normally referred to as the Bronze Age.
在公元前3000年到公元前1000年，即青铜器被广泛使用的这一时期，通常被称为青铜时代。
Do you think the government should legislate laws to fine people who use cell phones when crossing roads and intersections?
你认为政府应该立法对那些在穿过马路和十字路口时使用手机的人罚款吗？
The language and style you use when making an oral presentation should not be the same as the language in style you use when writing.
你在做口头报告时使用的语言和风格不应该与你在书面写作时使用的语言和风格相同。
Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.
西欧人也已经发明并且使用了磁罗盘，当云彩同时遮住了太阳和星星时，它就能起作用。
When people use the Internet, they do not remember the information; rather, they remember how to find it.
人们使用互联网时，他们不会记住信息本身，而是记住如何搜寻到这些信息。
A recent survey shows, over 53% people use the emoji when they are chatting online.
最近的一项调查显示，超过53%的人在网上聊天时会使用emoji 表情。
When I got to this result, I pointed out that therefore, you can use the lever rule.
当我得到这个结果时，我指出，因此，你可以使用杠杆法则。
If you're a person who uses pet phrases when you speak, you should train yourself carefully not to use these when you speak on the phone.
如果你是一个平常说话喜欢带口头禅的人，你就要训练自己小心地避免在接听电话时使用这些。
We need relentless focus, just like when paramedics arrive on a scene and use the concept of "triage" to ensure the most urgent cases get treated first.
我们需要坚持不懈的关注，就像当救护人员到达现场，使用“伤员鉴别分类”以确保最紧急的病例得到优先治疗一样。
In dry Mediterranean areas, tourists use almost twice as much water as local people when swimming in the pool.
在干燥的地中海地区，游客在游泳池游泳时的用水量几乎是当地人的两倍。
Only flush the toilet when necessary: this means to not use the toilet as a garbage to avoid wasting water.
只在必要时冲厕所：这意味着不要把厕所当作垃圾桶使用以避免浪费水。
When there's a fire, follow the teachers' instructions, leave the classroom quickly and use a piece of cloth to cover your mouth and nose so that you don't breathe in smoke.
发生火灾时，按照老师的指示，迅速离开教室，用一块布遮住口鼻，以免吸入烟雾。
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