It is important to wear shoes in the correct size that are appropriate for the activity you need them for.

因此，根据不同场合、不同活动选择合适的鞋子以及正确的尺码是至关重要的。

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Unless you need them for your work, it could be a good idea to remove books or magazines, and in doing so, remove the distraction.

除非你的工作需要用到那些书，否则最好把书和杂志拿走。当你这样做了，你也就消除了分心。

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Spray your clothes and let them hang the night before you need them for best results, and be sure to check the care instructions on your garments before use.

如果你期待在参与的活动中获得理想的效果，那么在前一天晚上，把喷剂喷到衣服上晾一个晚上，请记住在使用前留意喷剂的使用说明。

youdao

And, we'll tell you all you need to know except for how to draw them.

我会对他们一一详解,然不包括怎么去画。

麻省理工公开课 - 固态化学导论课程节选

And if you have your calculator all set up as you love and you don't want to change it, then maybe you should just go and get an $8.00 scientific calculator that doesn't have any of the graphing functions, because you don't actually need them, so that's a better option for you, you can do that as well.

如果你的计算器里已经按照你的喜好编好了,而你又不想改动，那么或许你可以,去再买一个八美元的科学计算器,它没有任何绘图功能，因为实际上你也用不到这些，所以这对你来说是一个更好的选择，你也可以这样做。

麻省理工公开课 - 化学原理课程节选

Once you're doing this on your own, -- especially, for example, on exam 2, which is a ways down the road, you won't be able to look at those steps, so you need to make sure that you can go through them without looking at them, but for now we can look at them as we are actually learning how to draw the Lewis structures, and rather just go through them step-by-step, it's more interesting to do it with an example.

每当你要画一个路易斯结构的时候，特别是，比如，在第二次考试中，在不远的将来，你将看不到这张表，因此你需要确保自己在不看这张表,的情况下也能按照上面的流程来画，但是目前我们是可以看着这张表,来学习如何画路易斯结构的，而相比于一步一步地讲，通过例子来演示一下会更有意思。

麻省理工公开课 - 化学原理课程节选

Cell phones can be a great convenience when you need them for business and personal needs, but walking around stores up and down the aisles letting the whole world in on your conversation is rude to those around you and to the person on the other end.

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Because if you see a need for them you can't justify that other countries don't have a need for it.

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After all, if someone wants to engage and contribute, it is a big downer to tell them that you have no need for them or nothing for them to do.

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