We have to stop

必须───must;停下───stop

Why must she interrupt?───她为什么偏要打断呢？

Only a few students passed the exam, so you can see that the paper must have been extremely stiff.───只有几个学生通过了考试, 可见考题是很难的.

A buxom widow must be either married , buried or shut up in a convent.───寡妇门前是非多.

We are in the same boat; we must help each other.───我们既然同舟, 就要共济.

You must hand over your passport before you leave.───离境前必须交回护照.

I must think over this, I have known for years that it was in the cards.───我得仔细考虑考虑,许多年来, 我就知道这是可能的.

There must be something wrong with my left arm, which is asleep.───我的左臂发麻,一定出什么问题了.

I must consult my principals.───我得同委托人商量一下.

As the wind blows, you must set your sail.

You must lose a fly to catch a trout.

We must recognize that we have been defeated.

We must stock up for the winter.

There must be an error in our calculations.