The only snag is, I can’t afford it!

唯一的困难是, 我付不起这钱！

She got snagged by the police while stealing the purse.

她在偷钱包时被警察一把抓住了。

She snagged her tights on the rough edge of the chair.

她的紧身衣裤被粗糙的椅子边缘勾住了。

A micrometeorite impact, a snag, a wayward tool or even a misstep can spell doom for an astronaut.

太空人只要给一颗微陨石撞上、给钩住、一个工具失灵、甚至一次失足，都可能万劫不复。