BLITZER: a lot of bickering, backstabbing.

其实背地里很多争吵。

youdao

Never once in our relationship, I was proud to think, had I ever even been tempted to commit a single mortal friendship sin: being competitive, gossiping, or backstabbing.

我曾骄傲地认为，对我们的友谊，我都一直没有被”凡夫俗子“友谊中的任何罪恶所诱惑：好胜、散布谣言或背地里说坏话。

youdao

Mr Mendonca de Barros claimed that the officials were the victims of political backstabbing and industrial espionage.

ECONOMIST: Crossed lines in Brazil

Mr Field's apology may, perhaps, suggest a just-in-time realisation that bickering and backstabbing are a sure path to oblivion.

ECONOMIST: Bagehot

You can guess where territorialism, gossip, or backstabbing comes from.

FORBES: Backstabber Alert! What To Do When Someone's Out To Get You at Work