1. 缄默的;哑口无言的
    Someone who is mute is silent for a particular reason and does not speak.

    e.g. He was mute, distant, and indifferent...
           他一句话也不说，显得疏远而冷漠。
    e.g. I threw a mute look of appeal at Paula.
           我默默地向葆拉投去恳求的目光。

2. 哑的;不能说话的
    Someone who is mute is unable to speak.

    e.g. Marianna, the duke's daughter, became mute after a shock.
           公爵的女儿玛丽安娜在遭受了一次电击后失声了。

3. 抑制(情感);减弱，缓和(活动强度)
    If someone mutes something such as their feelings or their activities, they reduce the strength or intensity of them.

    e.g. The corruption does not seem to have muted the country's prolonged economic boom.
           腐败似乎没有影响国家经济的持续繁荣。

4. 降低，减弱(音量)
    If you mute a noise or sound, you lower its volume or make it less distinct.

    e.g. They begin to mute their voices, not be as assertive...
           他们开始压低嗓门，不再那么肯定了。
    e.g. At first the wooded hillsides muted the sounds.
           最初长满树木的山坡吸收了噪音。

5. （乐器上的）弱音器
    A mute is a device which can be used to make a musical instrument produce a quieter, softer sound.