?保守秘密
... from mouth to mouth口口相传 keep one's mouth shut保守秘密 foam at the mouth极其愤怒 ...
?一声不吭
一声不吭 (as) mute as a fish [statue; stone]; keep one's mouth shut; not a word passed ..
绝口
徐庶进曹营
But Skuba's not one to keep his mouth shut.
CNN: Killer's barber: His mom did the talking
守口如瓶
keep a still tongue in one's head??/??button up
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。