LeonMcCarthy,12,wasbornwithoutfingersonhislefthand.That...
问题详情：LeonMcCarthy,12,wasbornwithoutfingersonhislefthand.Thatdidn’tstophimfrombeingabletodomanytasks.ButLeoncouldnotgraspmorethanoneobjectatatime.SoLeon’sfather,Paul,createdaprosthesis(假肢),using...