“天知道，”她低声抱怨，“那个疯子脑子里正在想什么。”

"God knows," she muttered, "what's happening in that madman's mind."

《柯林斯英汉双解大词典》

每次当我转身时，我都会低声抱怨。

And at every turn, I'd whine and complain.

youdao

当然，今天受过教育的英国人低声抱怨，大英帝国错了。

Of course, today's educated Briton murmurs, the empire was wrong.

youdao