A police clampdown on car thieves hit a snag when villains stole one of their cars.

警方打击偷车贼的行动遭遇了一点小挫折：匪徒偷走了一辆警车。

She snagged a heel on a root and tumbled to the ground.

她的鞋后跟绊在树根上，踉踉跄跄地摔倒在地上。

Brambles snagged his suit.

刺藤钩破了他的西服。