keep one's mouth shut 保守秘密 ; 一声不吭
to keep one's mouth shut 绝口
Keep One's Mouth Tightly Shut 徐庶进曹营
同义词： keep quiet shut one's mouth
以上来源于: WordNet
keep a still tongue in one's head , button up
But Skuba's not one to keep his mouth shut.
CNN: Killer's barber: His mom did the talking
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