to accept, admit, or recognize something, or the truth or existence of something

acknowledge someone as something Historians generally acknowledge her as a genius in her field. 历史学家们公认她是该领域中的天才。

[ + -ing verb ] She acknowledged having been at fault. 她承认自己有过错。

[ + that ] She acknowledged that she had been at fault. 她承认自己有过错。

You must acknowledge the truth of her argument. 你必须承认她论点的真实性。

[ + obj + to infinitive ] She is usually acknowledged to be one of our best artists. 她通常被认为是我们这个时代最伟大的艺术家之一。

They refused to acknowledge (= to recognize officially) the new government. 他们拒绝承认新政府。

The government won't even acknowledge the existence of the problem. 政府甚至都不承认这个问题的存在。

to tell someone, usually in a letter or email, that you have received something they sent you

They didn't acknowledge my letter.

acknowledge receipt of Please acknowledge receipt of this letter. 收到此信，请复函告知。