所有你必须做的是，就是坐下。

That's all you have to do, just sit down.

youdao

所有你必须做的是付费的资金发放。

All YOU have to do is pay a fee to release the funds.

youdao

所有你必须做的是阅读起来。

All you will have to do is read up on them.

youdao

That's all you have to do, just sit down.

所有你必须做的是，就是坐下。

麻省理工公开课 - 固态化学导论课程节选

When you say "I must" what you mean is "I need to do something."

当你说 "I must"的时候，你是指“我必须得做某事。”

Must 课堂 - SpeakingMax英语口语达人