Asweknowitisnoteasyt的精選

問題詳情：Asweknow,itisnoteasytobuildasatellite.Buildingatraditionalsatellitenormallytakesyears.Thecostscanbeashighas$250millionormore.Mostmembersofthedesignteamshaveworkedinthefieldforalongtime.Theyhol...