twist the knife (in the wound)

US /twɪst ðə naɪf ɪn ðə wuːnd/
UK /twɪst ðə naɪf ɪn ðə wuːnd/
"twist the knife (in the wound)" picture
1.

雪上加霜, 在伤口上撒盐

to make a bad situation even worse for someone, especially by reminding them of their failures or weaknesses

:
After he lost the game, his opponent decided to twist the knife by mocking his performance.
在他输掉比赛后,他的对手决定嘲笑他的表现,雪上加霜
She already felt terrible about her mistake, so his sarcastic comment just twisted the knife.
她已经对自己的错误感到非常糟糕了,所以他那讽刺的评论只是雪上加霜