上学期湖南省第九单元WelcometotheEarthSummit课件
日期：2010-11-02 11:50
Water pollution
Trash/garbage
Air pollution
Deforestation
Starvation
Desertification
The Earth Summit was held in Johannesburg in South Africa As Chinese journalists， all of us were invited to report this important summit
earth summit
Intr，
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