不得不做

United will be forced to make several positional changes.

联队将得做一些位置变化。

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

因为时间够，得放弃做准备工作。

Circumstances oblige me to do that.

情况得那做。

She nagged him into doing what she wanted.

她向, 得去做她所要的事。