如果你需要记住一件事情，写下来。

If there's something you want to remember, writing it down can help.

youdao

但是你需要记住一件事情。

But you should have one thing mind.

youdao

该文件会被保存，你需要记住浏览器把文件存在什么地方了。

The file will now be saved, and you need to remember the location where the browser has stored the resulting file.

youdao

However, the thing to remember is, when you look at heats of reaction under those conditions it's all well and good.

相反，需要记住，当你需要知道反应中放出的热量时,这些量是很有用的。

麻省理工公开课 - 热力学与动力学课程节选

I mean, it reminds you when it’s your friend's birthday, so you don’t have to remember.

朋友的生日也会有提醒，所以你不需要记住。

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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