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[生态与环境] 联合国秘书长潘基文2014年保护臭氧层国际日致辞(中英对照)
二十五年前,国际社会团结起来,以扭转保护地球不受空间有害辐射影响的大气臭氧层快速损耗的趋势。如今,臭氧层已经能够在今后数十年中得到恢复。2014-10-05 编辑:max
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