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日韩
日韩
回复 :If we faced a countdown to destruction, could we build a spacecraft to take us to new and habitable worlds? Can we Evacuate Earth? NGC's two-hour special examines this terrifying but scientifically plausible scenario by exploring how we could unite to ensure the survival of the human race.
回复 :约会实验来到巴西,而当地的单身男女将尝试在面对面见面之前找到真爱并订婚
回复 :有多大? 36公斤...!