keep mum about sth 对某事保密
decide to keep mum 决定保持沉默
tell sb to keep mum 告诉某人保密
keep mum on the issue 对问题保持沉默
ask sb to keep mum 要某人不说出去
1. She decided to keep mum about the surprise party. 她决定对这个惊喜派对保密。
2. He was told to keep mum about the new project. 有人告诉他要对新项目保密。
3. They kept mum during the investigation. 他们在调查期间保持沉默。
4. I’ll keep mum if you trust me. 如果你信任我，我会保密。
A: Did you hear about the new plan?
A：你听说新计划了吗？
B: Yes, but I was told to keep mum.
B：听说了，但有人让我保密。
1) 指对某事保持沉默，不透露信息
2) 常用于非正式口语表达“保密”
3) 强调不向他人泄露秘密或消息
4) 等同于 keep silent or keep quiet
1. 保持沉默；保密
e.g. They asked him to keep mum about the deal. 他们让他对这笔交易保密。
2. 不透露消息的状态
e.g. She kept mum when questioned. 她被询问时保持沉默。
verb phrase
1. to remain silent about something; to not reveal information.
Synonym: keep silent, keep quiet