我去拜访他时，发现他外出了。

I found him out when I called.

youdao

我去拜访他时看到他在书房里工作。

I found him working in his library when I called.

youdao

无论何时我去拜访他，他总是坐在桌边写东西。

Whenever I visited him, he was always writing at the desk.

youdao

Interestingly, towards his death, I had the chance to meet him, And I asked him... He knew he was dying.

在他去世前，我曾经去拜访他，我问他。。。，他知道他就要离开人世。

普林斯顿公开课 - 人性课程节选