holloween用介词at还是on答:Halloween 节日的介词用法:1.New Year’s Day,May Day,Children’s Day,National Day用on,2.Easter,Halloween,Christmas,Spring Festival,Dragon Boat Festival 和Mid-Autumn Festival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on christmas day;没有day的就用at Halloween [英]...