The doctor told you to stay in bed, and she knows best.

医生叫你卧床休息，她最清楚你该怎么做。

《牛津词典》

English model Kelly Brook has done what she knows best to prove that her micro blog was real.

怎样证明自己的微博是真身呢？英国名模凯莉·布鲁克有她自己的妙招。

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They will cry a great deal encouraging mother to do what she knows best: provide a soothing bottle of milk — which only compounds the problem.

他们会经常哭叫，好让母亲喂他们她以为最好的东西——同时也是全部问题之所在：一瓶让人舒心的牛奶。

youdao

Then I know someone else in the department and, as best I know, I'm the only person she knows.

我也认识系里另一个人，据我所知，我是她唯一认识的人。

耶鲁公开课 - 心理学导论课程节选

The Gypsy girl knows she has to look her best.

NPR: Gypsies Flock To Bridal Fair As Parents Negotiate

And this year, in this election, she touched her finger to a screen and cast her vote, because after 106 years in America, through the best of times and the darkest of hours, she knows how America can change.

NPR: Transcript Of Barack Obama's Victory Speech

But she knows she has to keep the promotion going because it's her best way of finding new customers -- and while repeat business is nice, you can't grow a business on it.

FORBES: Let them eat cake . . .please!