deaf-and-dumb ['defən'dʌm]

以下由轻松背单词网站提供

附加级

a.聋哑的

He was a very unusual musician inasmuch as he was totally deaf. 他是完全失聪的，从这点上来说，他是个很了不起的音乐家。
He turned a deaf ear to my request for help. 他对于我的求助置若罔闻。