孩子们在草地上轻快地跳跃奔跑。

The children were ___tripping across the grass with joyful energy.

他在音乐节上嗑药后开始步履蹒跚。

He started ___tripping after taking drugs at the music festival.

他在演讲时不断说错数字。

He kept ___tripping over the numbers during his presentation.

小心地上的电线，它会绊倒人。

Watch out for the cable on the floor – it's ___tripping people.