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受气包;逆来顺受的可怜虫
If you say that someone is a doormat, you are criticizing them because they let other people treat them badly, and do not complain or defend themselves when they are being treated unfairly.
例句
If you always give in to others you will end up feeling like a doormat.
如果你总是屈服于人，你最终会觉得自己像一个受气包。