| 单词 | pollution |
| 释义 | pollutionpollution /pəˈluʃən/ ●●○ noun [uncountable] earth science 1the process of making air, water, soil, etc. harmful to humans and other organisms: The use of electric cars could be a key factor in fighting pollution.pollution of We must stop the pollution of our rivers by factories and farms.2substances that make air, water, soil, etc. dirty and harmful to humans and other living things: Car exhaust emissions are a major source of pollution.air/water/soil pollution The construction site had dangerous levels of soil pollution.THESAURUSsmog – dirty air in cities, caused especially by smoke from cars and trucks: The smog was so bad you couldn’t see the mountains from the city.greenhouse gases – gases that surround the Earth and stop heat from escaping so that the air around the Earth gradually becomes warmer: The U.S. produces 25% of the world’s greenhouse gases.acid rain – rain that has harmful acid in it, caused especially by smoke from cars and factories: Acid rain has killed the fish in the lake.contamination – the fact of being dirty and unsafe to use, because harmful chemicals or other substances are there: Radioactive contamination was detected in the pipes. |
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