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新东方-柯林斯雅思备考词典
ozone
英 [ˈəʊzəʊn]
[NOUN]
1. [U 不可数名词] 臭氧
Ozone is a colourless gas which is a form of oxygen. There is a layer of ozone high above the Earth's surface, that protects us from harmful radiation from the sun.
双语例句
例：What they find could provide clues to what might happen worldwide if ozone depletion continues.
他们的发现可以揭示如果臭氧持续减少，全球范围内可能出现什么情况。