holloween用介词atatHalloween节日的介词用法：1.NewYear’sDay,MayDay,Children’sDay,NationalDay用on,2.Easter,Halloween,Christmas,SpringFestival,DragonBoatFestival和Mid-AutumnFestival前用at.3.基本上节日里面有day的就加on,在圣诞节那一天的话,也是onchristmasday;没有day的就用atHalloween[英][ˌhæləʊˈi:n][美][ˌhæloˈin]n.万圣节前夕;[电影]万圣节
