Aprofessortoldhisstudentstogointothecityslum(貧民窟)tostud...
問題詳情:Aprofessortoldhisstudentstogointothecityslum(貧民窟)tostudythelifeof200boys.Heaskedthemtowritereportsabouteachboy’slifeandfuture.Everyoneofthestudentswrote,“Hedoesn’thaveanyhope.” Twenty-...