英文句子翻译~急！

1.How to protect the environment has become one of the most difficult issues in the world

2.pollute the environment

3.damage the health

4.waste water running into the field, polluting the crops

however ,to protect the enviornment has becoming one of the biggest problems of the world
polute the enviornment
harm to health
不会。

1、任何保护环境已成为世界最大难题之一 (句子不通。。。。)
Any kind of environment protection has become one of the greatest issues in the world.

2、污染环境
Pollute the environment

3、损害健康
Harmful to health

4、废水流到田里，污染农作物
Waste water flowing into the field, polluting the crops.