She left the light on in the bathroom at his request.

她应他的要求让浴室里的灯开着。

《柯林斯英汉双解大词典》

I did it at his request.

我是应他的请求而做的。

youdao

We now, at his request, in his presence and in the presence of each other, subscribe our names as witnesses.

而我们应他的请求，当着他的面也签下我们的名字，作为遗嘱的见证人。

youdao

And, partly at his request, Emory University has started a formal inquiry into allegations of misconduct.

ECONOMIST: A gun revisionist gets blasted

At his request we will attend a further meeting with Mr Elias later this week.

BBC: The 'dangling' Lib Dem Two: the latest

Malloy announced last week that additional information would be released at his request.

NPR: Arsenal Of Weapons Found In Newtown Gunman's Home