The table folds up when not in use.
这桌子不用时可以折叠起来。
When you have a songbook as powerful as Dylan's, why not use it.
当你的歌集像迪伦的那样强大，为什么不用它。
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。
Students should not worry about when exactly to use certain expressions.
学生不必担心什么时候使用某些特定的表达。
It could also lead to servers that can be powered down, when not in use.
如果断电也可以确保信息不丢失，那么当服务器不用的时候，也可以断电。
Shut down your computer when not in use, and especially when you are not at home.
不使用时将电脑关闭，特别是当你不在家时。
People do not realise how often they use colour when they are talking.
人们并没有意识到他们是多么频繁地在谈话中使用各种颜色。
Do not use elevators when there is a fire.
发生火灾时避免使用电梯。
German regulations did not allow the use of a non-recognized standard when "proving" a system.
德国规定不允许使用非认可的标准。
Nappak inflatable bed folds into a small tube when not in use.
Nappak充气床在不用的时候可以折叠成一小束。
Simply unplug them when they’re not in use.
很简单，只要在不用的时候拔掉插头就OK啦。
Using them well (or knowing when not to use them) is a skill.
使用好模式（或知道什么时候不使用模式）是一项技能。
When you use metaphor, do not mix it up.
你用隐喻时，前后不能混为一谈。
When possible, do not use the second definition.
在可能的情况下，不要使用第二个定义。
When given the opportunity, use your body, not the elevator or the car. That's what it's made for.
只要有机会，就多动动你的身体，别总是坐电梯或坐车，你的身体是用来让你动的。
When entering the command, do not use the backslash.
输入命令时切勿使用反斜杠。
A parser may or may not use a model when parsing.
解析器在执行解析时可能使用也可能不使用某个模型。
This method is one that I would use when I do not have the ability to change the code under test.
这种方法是当我不能改变测试中的代码时所使用的。
I believe once again that when you are confident in yourself and know who you are as a person you will not ever in your life use a pick up line.
我再说一遍，当你自信、了解自己的时候，你根本不用什么搭讪用语，就能和女人约会。
Many devices use electricity even when you are not using the device.
很多设备在不用时仍耗电。
When not playing vibrato, use the palm of your right hand to work the key.
（当不演奏（手）振音时，用你的右手手掌操作钥匙（推杆）。 ）
Let's learn how to use this expression when not talking about sports.
让我们来学习如何在不谈论体育的情况下使用这个表达吧。
When you use Ajax, you're not really using a new programming language.
在使用Ajax时，实际上并不使用新的编程语言。
Unplug electrical devices when they're not in use.
当你不使用电器的时候，请拔掉插头。
Switch machine off when not in use.
不使用时关掉机器。
even when not in use they can be an "energy sink" just by being plugged in.
就算它们未被使用，它们依然能在插线的情况下消耗电能。
The structure can be folded into itself when not in use, for storage.
该结构可以在不使用时折叠，便于存储。
Nowadays, many bikes are the combination type that you can dismantle when not in use.
现在很多的自行车都是组合式的，不用时可以拆卸下来。
Nowadays, many bikes are the combination type that you can dismantle when not in use.
现在很多的自行车都是组合式的，不用时可以拆卸下来。
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