Hehasmillionsofstudentsfromallovertheworld.Theylistent...
問題詳情： Hehasmillionsofstudentsfromallovertheworld.Theylistentohisclassesonline.They 16 seehisfaceonthescreen.SalmanKhan,42,fromtheUS,isthefounder（創始人）ofthelearningwebsiteKhanAcademy.Unli...