很快天就黑了，我们不得不离开。

Soon it was getting dark and we had to leave.

他因为胃疼而不得不离开聚会。

He had to leave the party because of a stomachache.

她说如果我不离开，她会恐吓我。

She said she would threaten me if I didn't leave.

他们不得不离开家乡，因为饥荒。

They had to leave their homeland because of the famine.

他威胁说如果他们不离开就报警。

He threaten to call the police if they didn't leave.

由于工作调动，他不得不离开家人。

Due to a job transfer, he had to leave his family.

那只讨厌的苍蝇一直不离开我的食物。

The pesky fly wouldn't leave my food alone.

海边的天气迅速乌云密布，我们不得不离开。

The weather at the beach quickly clouded over, and we had to leave.

他们威胁说如果他不离开镇子就对他进行私刑。

They threatened to lynch him if he didn't leave town.

这个顽固的学生坚持不离开图书馆，直到完成作业。

The pertinacious student refused to leave the library until he finished his work.