1.at christmas (在圣诞用at) 一般后面跟时间,如at christmas time意思是(圣诞期间). 举例:To be here at Christmas time is a dream. that has come true! 圣诞期间到这儿来是(我的)梦想,它终于实现了. 2.on christmas 后面一般跟eve,意思是,圣诞夜,即平安夜12月24日晚. 留意不同解释:) at Christmas =在圣诞节那天 on Christmas Eve =在圣诞节前夕 during the Christmas holidays =在圣诞节假期期间 around Christmas time =在圣诞节或圣诞节前后的日子