stab someone in the back

US /stæb ˈsʌm.wʌn ɪn ðə bæk/
UK /stæb ˈsʌm.wʌn ɪn ðə bæk/
"stab someone in the back" picture
1.

背叛, 暗算

to betray someone, especially a friend or someone who trusts you

:
I can't believe she would stab me in the back like that after all we've been through.
我不敢相信她会在我们经历了这么多之后,这样背叛我
He felt completely betrayed when his business partner stabbed him in the back.
当他的商业伙伴背叛他时,他感到完全被出卖了。