我发现并不是一定day 用　　on ,能具体把哪些节日前at ,哪些节日用on 说一说吗？

on Christmas Day          at Christmas
on New Year's Day       at New Year
on Children's Day          at Spring Festival
on Women's Day          at Mid-Autumn Festival
on May Day                 at Dragon Boat Festival
on Teachers' Day         at Easter
on National Day           at Halloween
这些是牛津教材中学生经常接触到的节日

on Christmas Day on New Year's Day on Children's Day on Women's Day on May Day on Teachers' Day on National Day
at Christmasat New Year at Spring Festival at Mid-Autumn Festival at Dragon Boat Festival at Easter at Halloween
这些是牛津教材中学生经常接触到的节日

比较重大的节日前用at

比较重大的节日前用at