have to be

常见例句

We have to be friends.
我们一定要成为朋友。
The cracks in the ceiling have to be plastered over before you can start painting.
在油漆天花板之前，先得用灰泥把裂缝填塞起来。
What do I have to be happy about?
我有什么值得高兴的事情？

You don't have to be a VIP celebrity." Some experts say famous people may bring public awareness to an issue.
Now we don't have to be overly concerned here with what I take to be Chudleigh's generous oversight of Milton's generally sexist bias.
这一点我们不必多虑,弥尔顿总体上有性别歧视，恰德莱大方的忽视了这一点。
耶鲁公开课 - 弥尔顿课程节选
so that if you come up with some amazing invention, you have to be able to tell all the people about it.
这样如果你要是有了什么了不起的发明，你要能够把它告诉别人。
沟通很重要 - SpeakingMax英语口语达人

All cash donations have to be backed up by a record under the new law.
FORBES: Cutting Taxes While Doing Good
So therefore all of the candidates will have to be very competitive with African-Americans this year.
NPR: Presidential Candidates Target Black Music Festival
Ratings would have to be confidential to prevent investors from free-riding on each other.
FORBES: Rethinking Credit Ratings