Definition
To repeatedly remind someone of a past mistake or failure, often in a way that is intended to make them feel embarrassed or humiliated.
揭人短處
After he lost the game, his opponent kept rubbing his nose in it, which was really like rubbing salt into the wound.
他輸掉比賽後，對手一直揭他的瘡疤，這真的是在傷口上撒鹽。
She knew I messed up the presentation, but she kept rubbing my nose in it, making me feel awful.
她知道我搞砸了演示，但她一直揭我的瘡疤，讓我感覺很糟糕。
He already knows he made a mistake, you don't need to keep rubbing his nose in it to humiliate him further.
他已經知道自己犯了錯，你不需要一直揭他的瘡疤來進一步羞辱他。