相关oroff的文学知识

问题详情：阅读短文MsJames:Thismorning’sclassisaboutfirstaid(急救),orofferingsomeonemedicalhelp.Let’simagineanaccident.Aboyislyingontheground.Heisn’tmovingormakingasound.Heisinalotofpain(痛苦万分).Wha...