any unwanted or excessive sound that may cause harm or disturbance to human or animal life
噪音污染, 噪声污染
噪音污染可能导致压力和睡眠问题。
the unwanted and excessive artificial light that brightens the night sky, causing problems for stargazing, wildlife, and sleep
光污染, 光害
科学家警告说，光污染会混淆候鸟，导致致命的碰撞。
toxic and harmful substances in the air that can cause illnesses
空气污染, 大气污染
交通拥堵是城市空气污染水平上升的主要原因。
the poisoning of bodies of water caused by harmful materials
水污染, 水体污染
工厂必须减少废物排放以防止水污染。
the stuff left over from factories and businesses that can harm the environment if not handled properly
工业废物, 工业废料
正确处理工业废物对于防止土壤和水污染至关重要。
a type of gas present in the sky that protects the life on earth from the harmful rays of the sun
臭氧, 臭氧层
没有臭氧，人类会遭受更多的晒伤和皮肤癌。
things such as household materials that have no use anymore
垃圾, 废物
节日过后，街上到处都是垃圾。
worthless, unwanted, and unneeded things that people throw away
垃圾, 废物
海滩上散落着粗心游客留下的垃圾。
