他碰巧参与这次争论，他知道事情的真相。

He happened to join in the debate, so he knows what's what.

youdao

别人知道了事情的真相，他羞得无地自容。

He could not live with the shame of other people knowing the truth.

《牛津词典》

他要求知道事情的真相。

He demands to know the truth.

youdao

他当时很可能知道事情的真相，否则他不会这么生气。 。

Thee boy might have known the truth, but I am not quite sure.

youdao

他要求知道事情的真相。

He demanded to try again.

youdao

他似乎早已知道事情的真相。

He seemed to have known the truth.

youdao

他似乎早已知道事情的真相。

He seemed to have known the truth.

youdao