Haveyoueverwishedtohaveanumbrellathatmakesyourhandsfree...
问题详情：Haveyoueverwishedtohaveanumbrellathatmakesyourhandsfree?AlanKaufmanhascomeupwiththe"Nubrella",whichmeans"new"+"umbrella".Itisthefirsttrulyhands-freeumbrellaintheworld.Theinventorsaysthat...