危害的英文：
jeopardize
harm
endanger

参考例句：

a hazard to health
对健康有危害

Industrial effluent often causes a problem to people's health
工业废水常常危害人们的健康。

When spilled into the sea, oil can be toxic to marine plants and animals.
石油溢入海洋可能危害海生动植物。

The contraceptive pill is the worst offender, but it is not the only drug to deplete the body's vitamin levels.
避孕药的危害最大，但是它并不是唯一一种消耗体内维生素的药物。

I feel car exhaust, and smoke coming from stir frying vegetables are even more harmful than second hand smoking.
我觉得汽车的尾气﹑炒菜的油烟对健康的危害可能比被动吸烟更厉害。

A hazard to health
危害健康的因素

laser hazard and precaution
激光危害与防护

It can be toxic to your neural systems.
它对你们的神经系统造成危害。

In this it has done mankind a great disservice
这种做法对人类危害非浅。

Positive evidence of human fetal risk exists
有危害胎儿的明确证据

jeopardize是什么意思：
v. 危害；损害

I would seriously jeopardize your feelings.
我会严重危害你的情感。

The gang of scoundrels severely jeopardized public security.
这帮歹徒严重危害着社会安定。

It was so elliptical that existing relationships on both sides were not jeopardized.
如此圆润周到，以致双方现存的关系都没有受到妨碍。

harm是什么意思：
v. 伤害
n. 损害

It will do harm.
它会引起害处的。

Good counsel does no harm
忠言无害

Shit is harmful to your health.
毒品对健康有害。

endanger是什么意思：
v. 危及；使遭到危险

The giant panda has become an endangered species.
大熊猫已成了一种濒临灭绝的动物。

Scientists think that the Arctic is endangered by pollution.
科学家们认为北极面临着被污染的危险。

The golden eagle is now on the endangered species list.
金雕已被例入濒危物种。