- 问题详情:Seventypercentofourplanetiscoveredbyonehugebodyofseawater﹣theocean.In2008,theUnitedNationsrecognized(确立)June8asWorldOceansDay.It'sadaytothinkabouttheimportantrolethattheoceansplayinourlives,thedangersthatouroceansarefacingandtheactionwecantaketop...
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