catch sb doing sth 撞见某人干某事/当场抓住 I'll tan your hide if I catch you doing it again. 要是我再撞见你干那种事情,我就要打你一顿了. I suspect Terry has been pilfering goods from the stores.Give him enough rope,and we'll catch him doing it one day. 我怀疑特里一直在偷商店里的东西.暂时不管他,总有一天我们会当场抓住他的
