deaf mute

英文解釋：

名詞 deaf mute:

1. a deaf person who is unable to speak
   同義詞：mute, deaf-mute, deaf-and-dumb person

形容詞 deaf mute:

1. lacking the sense of hearing and the ability to speak
   同義詞：deaf-and-dumb, deaf-mute

中英例句：

1. He's a deaf mute and cannot tell anyone secret.
   他是個聾啞人，不會把他們的秘密告訴任何人。