不得不做

United will be forced to make several positional changes.

联队将不得不做一些位置变化。

Time to prepare was a luxuary he would have to forgo.

因为时间不够，他不得不放弃做准备作。

Circumstances oblige me to do that.

情况使我不得不那做。

She nagged him into doing what she wanted.

她向他唠叨, 使他不得不去做她所要的事。