每日商務英語 第158期:拒絕開口

to clam up 拒絕開口（俚語）

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英文釋義

To stop talking further; to become silent and uncooperative.

例句

I tried to determine who had created the problem at work, but when I asked the staff, they all clamed up because they wanted to protect each other.

我想確定是誰在工作中製造的問題，但當我問員工時，他們都不肯說，想互相保護。