名词:impairment 动词过去式:impaired 过去分词:impaired 现在分词:impairing 第三人称单数:impairs
in-=in,into,on 变化型 il-,im-,ir-
v [Tn] weaken or damage (sth) 削弱或损害（某事物）
*Loud noise can impair your hearing. 巨大的噪音有损听觉.
* Today's attack has seriously impaired attempts to achieve peace in the area. 今日发动的攻击严重损害了在该地区谋求和平的努力.
* impaired vision 受损的视力.
[Date: 1300-1400; Language: Old French;Origin: empeirer, from Vulgar Latin impejorare, from Late Latin pejorare 'to make worse']
to damage something or make it not as good as it should be
The illness had impaired his ability to think and concentrate.