这样一种恶毒的谎言简直是暗箭伤人。

Such a vicious lie could be nothing but a stab in the back.

《新英汉大辞典》

许多年轻人认为只有采取暗箭伤人的手段才能取得商业上的进步，其实不然。

A lot of young people think you have to stab people in the back to get ahead in business, but you don't.

youdao

我很爱我的女朋友，直到我觉察她告诉她所有的朋友我很蠢，她真是一个暗箭伤人的人。

I was in love with my girlfriend until I found out that she told all her friends that I were stupid, she's such a back-stabber.

youdao