一、详细释义：
phr.
必须，不得不
例句：
We always have to push him to do his homework.
我们总是不得不督促他做作业。
例句：
They had to have some way of eking out a reasonable existence.
他们不得不辛辛苦苦地维持合理的生活。
二、词义辨析：
have to,must
这两个动词均有“必须，不得不”之意。 have to通俗用语，指受客观条件或环境迫使而“不得不”做某事，突出客观性。 must通常表示命令或说话人主观认为必须要做某事，含强调语气，侧重主观性。
三、参考例句：
You have to behave.
你得规矩点。
You have to behave.
你得规矩点。
We have to skimp.
我们得省着点。
I have to disguise myself.
我不得不伪装我自己。
I have to go now.
我现在得走了。
I have to confess something.
我必须坦白一件事。
I have to go home.
我要回家了。
Explorers have to withstand hardships.
探险者得忍受艰苦。
You have to stop this!
你[必须]停止这样做！
You have to pay storage.
你须缴纳保管费。