put the knife in
US /pʊt ðə naɪf ɪn/
UK /pʊt ðə naɪf ɪn/
成語
背後捅刀子, 雪上加霜
to betray someone or cause them great emotional pain, especially by saying or doing something hurtful at a vulnerable moment
範例:
•
After all I've done for him, he really put the knife in by spreading those rumors.
在我為他做了這麼多之後，他散佈那些謠言真是在我背後捅刀子。
•
Her cruel comment really put the knife in when I was already feeling down.
當我心情已經很低落的時候，她那刻薄的評論真是雪上加霜。