| 单词 | pollution |
| 释义 | pollution (once / 818 pages) n Pollution is unwanted, harmful stuff contaminating an environment. The race to develop clean energy is motivated by high levels of pollution that people fear are permanently damaging the earth's environment. When you hear about pollution, you’re most likely hearing about chemical emissions into air or water that come from industrial processing. But pollution isn’t just environmental. Anything we think of as pure can be contaminated by pollution polluted, whether that's a lake or an idea. If your mother finds you reading trashy magazines instead of doing your homework, she might worry about the pollution of your mind. WORD FAMILYpollution: antipollution, pollutions+/pollutant: pollutants/pollute: pollutant, polluted, polluter, pollutes, polluting, pollution/polluted: unpolluted/polluter: polluters USAGE EXAMPLESA total of 24 cities are under a pollution “red alert,” the highest warning level in China’s four-tiered system. Washington Times(Jan 03, 2017) But the country is now facing the limits of that model amid slowing growth, toxic pollution and the shift of manufacturing work to less-developed nations. Washington Post(Dec 30, 2016) The Beijing Municipal Environmental Protection Bureau extended an “orange alert” for heavy air pollution for three more days. Seattle Times(Jan 02, 2017) 1n undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities Hypo|Hyper biodegradable pollution pollution that is rendered harmless by natural processes and so causes no permanent harm nonbiodegradable pollutionpollution that accumulates in the environment and may appear in the food chain air pollutionpollution of the atmosphere noise pollution, sound pollutionannoying and potentially harmful environmental noise thermal pollutionharm to lakes and rivers resulting from the release of excessive waste heat into them water pollutionpollution of the water in rivers and lakes acid precipitation, acid rainrain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water industrial air pollutionpollution resulting from an industrial plant discharging pollutants into the atmosphere miasm, miasmaunhealthy vapors rising from the ground or other sources small-particle pollutionair pollution caused by fine particles of soot (as from power plants or diesel engines) smog, smogginessair pollution by a mixture of smoke and fog impureness, impurity the condition of being impure environmental conditionthe state of the environment 2n the state of being polluted Syn|Hyper befoulment, defilement dirtiness, uncleanness the state of being unsanitary 3n the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors Syn|Ant|Hypo|Hyper contamination decontamination the removal of contaminants dust contamination the act of contaminating with dust particles dirtying, soiling, soilure the act of soiling something |
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