Ourplanetwasbornsomebillionsofyearsago.Eversincethispla...
问题详情：Ourplanetwasbornsomebillionsofyearsago.Eversincethisplanethasdeveloped,ithassurprisedushumanbeings.Nomatterhowmuchwehumanbeingshavedevelopedtechnologically,wecannotevercreatethiskindofnaturalp...