permanent deafness中文什么意思

永久性耳聋

• permanent:    adj. 1.永久的，不变的，耐久的 ...
• deafness:    不听; 耳聋治疗设备; 聋度; 聋症 ...
• permanent a t:    永久性资产

例句与用法

1. Noise is unwanted sounds . when the noise is too big , it becomes a kind of pollution . noise is irritant , and it can cause pressure , or even sudden or permanent deafness
   噪音是不想要的声音。特别是噪音太大时，便会变成污染的一种。噪音是刺激性的，能引致精神压力，甚至导致暂时或永久失聪。