impair

verb

1. make worse or less effective

e.g. His vision was impaired

2. make imperfect

e.g. nothing marred her beauty

Synonym: marspoildeflowervitiate

1. 损害;妨碍;削弱
If something impairs something such as an ability or the way something works, it damages it or makes it worse.

e.g. Consumption of alcohol impairs your ability to drive a car or operate machinery...
饮酒会削弱你驾驶汽车或操控机器的能力。
e.g. His movements were painfully impaired by arthritis.
他行动不便，深受关节炎之苦。

1.

1. 损害,减少：immigrate 移居入境 | impair 损害,减少 | impale 以尖物刺住,围起

2. 削弱：impact 碰撞、冲击、冲突;撞击、挤入、压紧 | impair 削弱 | impartial 公平的、不偏不倚的

3. 减损：impact load 冲击荷载 | impair 减损 | impedance 阻抗