either-or

例句：

1. 1.If you don't finish the work by tomorrow, we'll have to either do it ourselves or hire someone else.
   如果你明天之前不完成工作，我们将不得不自己做或者雇别人做。
2. 2. He decided to either go for a walk or watch a movie.
   他决定去散步或者看电影。
3. 3.They could either accept the offer or decline it.
   他们要么接受这个提议，要么拒绝它。