CFCs are the chief destroyers of the ozone layer.
氯氟烃是破坏氧层的元凶。
CFCs are the chief destroyers of the ozone layer.
氯氟烃是破坏氧层的元凶。
The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays.
环绕地球的氧层保护着我
的皮肤免受紫外线的伤害。
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本软件的观点;若发现问题,欢迎向我
指正。