you won't catch sb doing sth said to mean that you will certainly not see someone doing a particular thing or in a particular place 别指望…会做;…不会做 You won't catch me at work after four o'clock. 别指望我4点以后工作。 You won't catch Carla eating in a cheap restaurant. 卡拉不可能在便宜的餐馆吃饭，不可能的。