be as silent as the grave not to utter a single word become almost as silent as a post button up one´s mouth
I´ve always had a loud mouth, I refuse to be silenced.
我一贯大声说出自己的想法,不会迫于压力而一言不发。
—— 柯林斯例句They hurried about in dead silence, with anxious faces.
他们匆匆地走来走去,一言不发,面露焦急之色。
—— 柯林斯例句The attacker still stood there, watching her with silent contempt.
袭击者还站在那里,用一种鄙夷的眼神一言不发地看着她。
—— 柯林斯例句They jogged in silence a while, faces lowered, out of step.
他们低着头,一言不发地慢跑了一会儿,步伐也不一致。
—— 柯林斯例句He turned away in sullen, resentful silence.
他闷闷不乐、心怀怨恨、一言不发地转过身去了。
—— 柯林斯例句