AlmosteverybodyinAmericawillspendapartofhisorherlifebe...
問題詳情: AlmosteverybodyinAmericawillspendapartofhisorherlifebehindashoppingcart.Theywill,inalifetime,pushthechrome-platedcontraptionsmanymiles.Butfewwillknow—oreventhinktoask—whoitwasthatinventedt...