单词：ozone layer
ozone layer的用法和样例：
例句
- It has made a very big hole in the ozone layer.它已经使臭氧层出现了一个非常大的空洞。
- ozonosphere臭氧层
单词：ozone layer 相关文章
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I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
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I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
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