节日若是Day,表示具体某天,一般用on,如on Christmas Day,(但要注意是at Christmas）,on Children's Day,on Dragon Boat Day,on Christmas Eve
另外,表示具体到某天的某段时间也是用on,如on the morning of New Year's Day
而festival一般是at,如at Spring Festival
节日若是Day,表示具体某天,一般用on,如on Christmas Day,(但要注意是at Christmas）,on Children's Day,on Dragon Boat Day,on Christmas Eve
另外,表示具体到某天的某段时间也是用on,如on the morning of New Year's Day
而festival一般是at,如at Spring Festival