词汇	boundary crossing
释义	boundary crossing 越境
随便看	teaching web-site teaching wehsites teaching while practice teach-ing while serving teaching wisdom teaching wit teaching with an assigned goal teaching with appreciation teaching with case teaching with cases teaching with creative thinking teaching with different levels teaching with direction teaching with electric audio-visual aids teaching with features teaching with flashbacks teaching with layers teaching with multimedia teaching with multimedia courseware teaching with pithy formula teaching with practice teaching with research teaching with two language teaching wits teaching wittiness