我想知道这么多年来玛丽是如何保持她的身材的。

I wonder how Mary has kept her figure after all these years.

youdao

我们如何保持身体健康？

How do we keep our bodies healthy?

youdao

你如何找到并保持真正的友谊呢？

How do you find real friendship and keep it?

youdao

And it increases the role of these economic elites or their concern with maintaining their privileges against threats to their privileges and to their prosperity no matter where they come from.

这在提高了经济精英的地位的同时,也使他们更担心如何保持他们的特权,以及如何对抗对他们特权和繁荣的威胁,无论威胁来自何方

耶鲁公开课 - 欧洲文明课程节选

As a working mother, how do you keep a balance between your family and your work?

作为一个有工作的母亲，你是如何在工作和家庭中保持平衡的呢？

妈妈亲手做的味道 - SpeakingMax英语口语达人

How to gain, how to keep, how to recover happiness, is in fact for most men at all times the secret motive of all they do, and all they are willing to endure."

如何获得，如何保持，如何重获快乐，是多数人时刻怀有的秘密动机，是他们愿意忍受一切的目的“

哈佛公开课 - 幸福课课程节选