我知道，萨尔，做你必须做的事情。

I know, Thrall, do what you must.

youdao

首先，决定你想成为什么人，然后，做你必须做的事。

First, decide who you would be. Then, do what you must do.

youdao

所以你可以用你的时间做你想做的事情，而那些你不想做的事情（但确实必须做的）到头来却往往有更好的结果。

So you can spend your time doing things that you do want to do and end up with often better results for what you don’t want to be doing (but what needs to be done anyway).

youdao

So in order to rotate a double bond, you have to actually break the pi bond, so essentially what you're doing is breaking the double bond.

为了能够旋转双键，你必须打破一个π键，本质上我们要做的就是打破双键。

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And you don't want to do another thing but you have to go to the gym.

虽然你不想做其他任何事情，但是你却必须去健身房。

so that 课堂 - SpeakingMax英语口语达人

So, part of what goes on when you learn, is you have to learn the language --the phonemes that your language has.

因此你在学习语言时要做的一件事情便是,你必须学习你所学语言的各种音位

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