impair

v. 损害
[计算机] 损伤

His illness has impaired his efficiency.

生病降低了他的效率。

On a communications link, noise or unwanted signals that impair the receipt or correct interpretation of speech or data.

在通信链路上出现的噪音或无用的信号，它损害语音、数据的接收或正确的解释。