你可以用“make sure”来声明想要某东西或某事必须做到。

You can use "make sure" to declare that you want something or something needs to be done.

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如果你打算继续和你的朋友交往，你必须做到诚实、大方和善解人意。

If you plan to keep your friends, you must practise honesty, generosity and understanding.

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至关重要的是，一旦一家机构声称自己在某方面特别擅长，它就必须做到这一点。

It is vital that once an institution claims to be particularly good at something, it must live up to it.

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They might have to be formulated as very small steps, in order to do that, but you could.

他们那被构造出来，这些过程必须很小，这好像很难，但实际上是可以做到的。

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You want to use "make sure" to declare that you want something to declare that something needs to be done.

当你声称想要某东西，或表示某事必须做到的时候，可以使用“make sure”句型。

Make sure 课堂 - SpeakingMax英语口语达人

You could look at what it does but babies are not very coordinated or skilled so you need to use clever methods.

你可以观察婴儿,但婴儿不怎么配合,或者说他们的言语技能并不熟练,所以你必须要用精巧的方法才能做到

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