Question: Man must know what God is, before he can know God.

问：人类在认识上帝之前必须了解上帝。

youdao

Read this article, I see: a man must know how to treasure you must cherish everything we have.

做人要懂得珍惜，要珍惜你现在拥有的一切。

youdao

It must be a privilege to know such a man.

认识这样一个人必是一种荣幸。

《柯林斯英汉双解大词典》

Two criminal drifters, Song and Tang, have developed a scam: they befriend one of the many uprooted men looking for work and tell him that they know of a job at a rural mine, but that the man must pretend to be their brother in order to be hired.

NEWYORKER: Blind Shaft