嘴严[zuǐ yán]
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able to keep a secret; discreet in speech; cautious about speech
1. 我说的没错吧他们让你嘴严点他们又威胁你了对吧？
I think they're here, I think they're threatening you again.
2. 但他嘴严得很。
Though he kept his secrets to himself.
3. 嘴严在线翻译
3. 我告诉你的那个事情很重要，你嘴严点。
Zip someone's lip The thing I told you is really important, so zip your lip.
4. 那人是不是来过让你嘴严点？
Has that person come back here to make sure that you keep your mouth shut?
5. 聪明人嘴严。/头脑灵，嘴巴紧。
A wise head makes a close mouth.
6. 聪明人嘴严。
A wise man makes a close mouth.
7. 他是个嘴严的老伙计。
He's a secret old fellow.