Backstabbing is the act of secretly doing harm to someone, especially by saying bad things about them, in order to gain an advantage. It is the behaviour; the person who does it is a backstabber.

Backstabbing is the act ofBackstabbing 指的是 secretly doing harm to someone偷偷傷害某人的行為, especially by saying bad things about them尤其是說對方的壞話, in order to gain an advantage為了讓自己佔上風 It is the behaviour它指的是這個行為; the person who does it is a backstabber做這件事的人就叫 backstabber

Offices, friend groups, and politics are where you hear it most. It is informal and always disapproving.

Offices, friend groups, and politics職場、朋友圈和政治圈 are where you hear it most是你最常聽到這個詞的地方 It is informal and always disapproving這是口語用詞，而且永遠帶著否定意味

You can also use it like an adjective: backstabbing colleagues, a backstabbing campaign. Gossip can be idle; backstabbing has a purpose — the speaker wants to climb, or to push the other person down.

You can also use it like an adjective你也可以把它當形容詞用: backstabbing colleagues愛搞背後捅刀的同事, a backstabbing campaign一場充滿暗算的競選活動 Gossip can be idle八卦可能只是隨口說說; backstabbing has a purpose背後捅刀卻有目的 — the speaker wants to climb, or to push the other person down說話的人想往上爬，或想把對方拉下來

Though actually, people sometimes throw the word at any unkind talk behind someone’s back, even when there is no clear prize, because the feeling of betrayal is the same.

Though actually不過老實說, people sometimes throw the word有時候人們也會用這個詞 at any unkind talk behind someone's back來形容任何在背後說壞話的行為, even when there is no clear prize即使並沒有明確的好處可圖, because the feeling of betrayal is the same因為那種被背叛的感覺是一樣的