Now we can think about the fourth period, and the fourth period is where we start to run into some exceptions, so this is where things get a teeny bit more complicated, but you just need to remember the exceptions and then you should be OK, no matter what you're asked to write.

现在我们可以考虑第四周期，而且在第四周期,我们会遇上一些特例，所以事情有,一点复杂，但是你只需要记住,这些特例然后就没有问题了，无论你被要求写什么。

麻省理工公开课 - 化学原理课程节选

For that reason, it's a pattern that you should use, master and remember.

因此，这是一个你需要好好学会、记住并掌握的句型。

I'd rather 课堂 - SpeakingMax英语口语达人

You just have to keep remembering that all that matters for a company-- for you as a--your interest in a company depends on your shares divided by the total number of shares.

你只需要记住,公司在意的只是,你在公司中的利益取决于,你的股数除以总股数

耶鲁公开课 - 金融市场课程节选

The "let's" pattern is a great pattern that you really should memorize and put to use often if you don't already.

et's句型是一个非常棒的句型，你需要尽量记住它并且多多活用。

Let's 课堂 - SpeakingMax英语口语达人

Now the bases, and you don't need to memorize the structures of these I'm going - I'm describing the whole molecule to you in its molecular detail and then we're going to simplify it down to a version that we can talk about more easily.

现在讲碱基,你不需要记住这些结构,我将给你们详述整个分子,的结构细节,然后我们把它简化为一个模板,使我们更容易讨论

耶鲁公开课 - 生物医学工程探索课程节选

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