作为一个网站，你要做到四点承诺。

With a website, you are promising four things.

youdao

你要做到的是双膝微曲的紧张踢腿。

You want to keep your kick tight and small with slight knee bend.

youdao

这不是一个放弃的标志，你要做到的是改进你的方法。

It's not a sign to give up, but instead to refine your approach.

youdao

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

耶鲁公开课 - 心理学导论课程节选

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

If you can do all that, I think the chances are that you're going to hit a lucky streak because luck comes and goes.

如果你可以做到这些，我认为你很可能要,运气连碰了,因为运气总是来来去去。

耶鲁公开课 - 金融市场课程节选