普通培训 IELTS（5分及以下） - 污染

any unwanted or excessive sound that may cause harm or disturbance to human or animal life

噪音污染

the unwanted and excessive artificial light that brightens the night sky, causing problems for stargazing, wildlife, and sleep

光污染

toxic and harmful substances in the air that can cause illnesses

空气污染

the poisoning of bodies of water caused by harmful materials

水污染

the stuff left over from factories and businesses that can harm the environment if not handled properly

工业废料

a type of gas present in the sky that protects the life on earth from the harmful rays of the sun

臭氧

things such as household materials that have no use anymore

垃圾

worthless, unwanted, and unneeded things that people throw away

垃圾

materials that have no use and are unwanted

废墟

electronic devices that are no longer functional, useful, or wanted

电子垃圾