不得不做

United will be forced to make several positional changes.

联队将一些位置变化。

She nagged him into doing what she wanted.

她向他唠叨, 使他她所要的事。

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

因为时间够，他放弃准备工作。

Circumstances oblige me to do that.

情况使我样。