rub salt into the wound 伤口上撒盐，雪上加霜（使某一困难局势对某人变得更糟）

【例句】
Losing was bad enough. Watching them receiving the trophy just rubbed salt into the wound.
落败已经很糟糕了；还要看着他们接受奖杯，更是在伤口上撒盐。

Don’t rub salt in the wound by telling me how enjoyable the party was.
不要伤口上撒盐，告诉我派对过得多么开心。