Aboy,whowasnervousonhisfirstdayofschool,climbedontoathi...
問題詳情：Aboy,whowasnervousonhisfirstdayofschool,climbedontoathird-floorbalcony(陽臺)andputlegsovertheside.Hismotherandteacherstriedtheirbesttobringhimdown,butfailed.However,afirefighter(消防員)whodres...