I didn't notice him leaving.

我没看到他离开。

《牛津词典》

The others seemed not to notice us leaving — perhaps they assumed we were a couple.

其它人好像没有注意到我们离开，也许他们以为我们是一对的。

youdao

This is short notice, I know. But Hank and I are leaving tonight.

我知道这很突然，但是汉克和我今晚就要离开了。

youdao

Four current members of staff are currently working their notice before leaving the civil service this summer which will cut the "full time equivalent" number of staff to 56.8 - still more than in March 2011.

BBC: Wales Office civil servants survive Whitehall cull

However, Joe Girardi is leaving a positive impression and people are finally taking notice at how special of a manager he actually is.

FORBES: Connect

Mr. Notice said the corporation should by now be leaving spending decisions to a separate nonprofit it created.

WSJ: Pact's Benefits in Limbo