| 单词 | photochemical smog |
| 释义 | photochemical smog ˌphotochemical ˈsmog noun [C or U] ► F0 a fog caused by light from the sun shining on chemicals in the air produced by traffic and industryThesaurus+: ↑Clouds, dew, fog and steamThesaurus+: ↑Environmental issues , ↑Rubbish and waste , ↑Protection and protectors |
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