哑口的英文：
muteness
n. 哑,无言
- Criticism of Germany, by comparison, is muted.
相比之下，德国的指责算是柔和的了。 - Lacking the faculty of speech; mute.
丧失了说话能力的；哑的 - mute for musical instruments
乐器的弱音器 - Produced by or provided with a mute.
装上弱音器的装上弱音器后奏出的或装上弱音器的 - Please mute a music instrument.
请减低乐器的声音。