1. The predator was lying in wait in the tall grass.
捕食者正潜伏在长草丛中.

2. They were lying in wait for the perfect moment to strike.
他们正在等待完美的出击时机.

A: Did you see the leopard?
A：你看到那只豹子了吗？

B: No, but I think it is lying in wait in the bushes.
B：没有，但我认为它正潜伏在灌木丛中。

1) 埋伏，伏击

2) 潜伏待机

1. 潜伏，伏击

e.g. The enemy soldiers were lying in wait in the forest.
敌军士兵在森林里埋伏着。

idiom

1. To be in a concealed position, waiting to attack or capture someone or something.

Synonym: ambush, lurk