He might have been struck dumb.

他好象突然受到巨大的惊吓，变成哑巴了。

I was struck dumb, and I knew it was what the French call a coup de foudre.

我惊呆了，我知道这就是法国人所说的“一见钟情”。

So, to be 'gobsmacked' is to be struck dumb as if by a smack in the face.

一个人变得“gobsmacked”是说这个人像是被打了一个大耳瓜子，蒙了。

My uncle, usually so garrulous, was struck dumb likewise.

平时多嘴的叔叔， 也同样傻眼了。

Suddenly the boy was struck dumb; he trembled and began to run upon his hands and feet.

男孩突然哑口无言。他浑身发抖，开始手脚并用地奔跑。

About half an hour afterward, when the schoolroom door opened and Sara walked in, the entire seminary was struck dumb.

大约半小时后，当教室门打开，莎拉走进来时，整个神学院都惊呆了。

And like, if we were to actually absorb that, you know, we just would almost be struck dumb trying to wrap our minds around it.

就像，如果我们真的要吸收它，你知道，我们几乎会因为试图将我们的思想集中在它上面而感到惊讶。