And just intuitively, when might you need to put a backslash in front of a double quote given the examples we've seen thus far?

凭直觉来看，迄今为止，你们什么时候,会用到\“呢？,举个例子？

哈佛公开课 - 计算机科学课程节选

you might need math to know how to make a bridge

你可能需要数学知识，才知道如何建一座桥

文学是灵魂的方式 - SpeakingMax英语口语达人

So you can imagine, we actually don't need to think of it as a piece of gold foil it might be easier to think of it as a couple of layers of atoms.

所以可以想象,我们不用把它当成一片金箔,只要把它当成是几层原子,所以他所作的就是。

麻省理工公开课 - 化学原理课程节选

And I put a periodic table up there, just the part you might need to look at.

我在上面放了一张周期表，只放了可能要用到的一部分。

麻省理工公开课 - 化学原理课程节选

So if you haven't clicked in yet, or if you want to change your answer, keep in mind that you might need to jot down, - for example, a Lewis structure before you can answer this question.

如果你还没有点答案，或者你想改变你的答案，记住你也许需要在回答问题前写点东西，比如画一画Lewis结构,来得到最终。

麻省理工公开课 - 化学原理课程节选

For those of you just walking in now, you might not have a chance to get all of the thought process that you need in on this clicker question, because it is based on a Lewis structure, so we will go over it.

那些刚刚进来的同学，你们可能没有机会时间来回答,因为答案是基于Lewis结构上的,所以我们赶紧看一下。

麻省理工公开课 - 化学原理课程节选