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The ozone layer protects living things from harmful radiation of the ultra-violet ray from the sun.
臭氧层是保护所有生物来自于太阳的有害辐射和紫外线。
youdao
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The ozone layer protects living things from harmful radiation of the ultra-violet ray from the sun.
臭氧层是保护所有生物来自于太阳的有害辐射和紫外线。
youdao