IsThereLifeonEarth的精选

问题详情：IsThereLifeonEarth?   TherewasgreatexcitementontheplanetofVenus(金星)thisweek.ForthefirsttimeVenusianscientistsmanagedtolandasatelliteontheplanetEarth,andithasbeensendingbacksignalsaswellas...