IsThereLifeonEarth的精選

問題詳情：IsThereLifeonEarth?   TherewasgreatexcitementontheplanetofVenus(金星)thisweek.ForthefirsttimeVenusianscientistsmanagedtolandasatelliteontheplanetEarth,andithasbeensendingbacksignalsaswellas...