LouisBraillewasablin的精選

問題詳情：LouisBraillewasablindmanandheinventedthecodefortheblind.Hiscodegavewindowstotheblind.Intheyear1812,LouisBraillewasaverysmallboy.Helivedinasmalltown.Hisfatherhadasmallshop.Oneday,Louiswasplayin...