沉默不语的英文：
dumb as a fish
dumb as an ox
dumb as an oyster

参考例句：

His silence implied agreement.
他沉默不语意味着同意了.

As dumb as a statue
像塑像一样沉默不语

They begged him to explain,but he remained dumb.
他们请求他解释,但他保持沉默不语.

As we crossed the shoreline, the geese broke formation and we fell silent
我们飞越湖岸线时，雁群队形乱了。我们沉默不语。

Daintry had been a brooding restless presence, silent, locked in thoughts of his own
戴恩特里一直焦虑不安，沉默不语，完全陷于自己的思路。

Sometimes when he came he was silent and moody, and after a few sarcastic remarks went away again.
有时他来时沉默不语，心情抑郁，发了一道冷嘲热讽的议论后就走了。

dumb是什么意思：
adj. 哑的；沉默寡言的；愚蠢的

Dumb dogs are dangerous.
不叫的狗最危险。

Dumb dogs are dangerous
不叫的狗咬人

It was almost a dumb procession.
几乎像是一队哑巴。

fish是什么意思：
n. 鱼；鱼肉
v. 捕鱼，钓鱼；搜寻

Fishes is used to refer to different species of fish fishes
的形式是用以指鱼的不同品种

To fish in the air
海底捞月

Big fish eat little fish.
弱肉强食。

oyster是什么意思：
n. 牡蛎；沉默寡言的人

It's the pearl in the oyster, anyway.
这是蚌里的明珠，不管怎么说。

You have passed the hurdle and the world is your oyster.
你已克服了障碍，你可随心所欲了。

You can trust him with everything. He is as close as an oyster.
你什么事情都可放心地对他讲，他是个守口如瓶的人。