stab someone in the back (sī kè ān dé tài ěr dé ào fū)

Idiom Trust

含义

to betray someone who trusts you

背叛信任你的人 (bèi pàn xìn rèn nǐ de rén)

例句

"I can’t believe he stabbed me in the back after all I did for him."

"我简直不敢相信他在我为他做了这么多之后竟然在背后捅了我一刀。" (Wǒ jiǎnzhí bù gǎn xiāngxìn tā zài wǒ wèi tā zuòle zhème duō zhīhòu jìngrán **zài bèihòu tǒngle wǒ yī dāo**.)