bite your tongue
US /baɪt jʊər tʌŋ/
UK /baɪt jʊər tʌŋ/
1.
咬紧牙关, 忍住不说
to make a conscious effort to avoid saying something that you want to say, often because it would be inappropriate or cause trouble
:
•
I had to bite my tongue to keep from telling him what I really thought.
我不得不咬紧牙关，才没把心里话告诉他。
•
She wanted to argue, but decided to bite her tongue.
她想争辩，但决定忍住不说。