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1·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纵机器的能力。《柯林斯英汉双解大词典》

2·Smoking impairs our health.

吸烟会损害我们的健康。

3·It impairs your work or social life.

梦游者的工作和社交生活会受到损害。

4·That impairs the national dignity of the State;

损害我国民族尊严的；

5·It impairs your capacity for rational thought.

电视损害你理性思考的能力。

6·All this impairs the capacity for thinking and learning.

所有这些损害了思考和学习的能力。

7·Alcohol impairs driving ability so NEVER drink and drive.

酒精会阻碍驾驶能力，所以千万不要酒后驾车。

8·Obesity is defined as excessive adipose tissue (fat) that impairs health.

所谓肥胖症指的是人体中存在危害健康的过量脂肪组织。

9·The lack of normal white cells impairs the body's ability to fight infections.

正常白细胞的缺乏会削弱身体抵抗感染的能力。

10·Passive smoking impairs the respiratory health of hundreds of thousand of children.

被动吸烟损害了成千上万孩子的呼吸系统健康。