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臭氧洞
chòu​yǎng​dòng

ozone hole

Definitions Defs Origin Strokes Stroke Words Sentences Sents
  1. 臭氧 chòu​yǎng noun
    abbreviation of 臭氧层 臭氧層 chòu​yǎng​céng
    ozone layer
    the layer of the Earth's atmosphere that contains a high concentration of ozone, which absorbs most of the sun's ultraviolet radiation
  2. 洞 dòng noun
    abbreviation of 空洞 kōng​dòng
    cavity; hollow
    a physical cavity, void, or hole; physically empty or hollow inside