1、National Day is a national holiday formulated by a country to mark the country itself.——国庆节是由一个国家定的用以纪念国家本身的法定假日。

2、They are usually the independence of the country, the signature of the constitution, the birth of the head of state or other significant anniversary; Some are the saints day of the nations patron.——它们通常是这个国家的独立、宪法的签署、元首诞辰或其他有重大纪念意义的周年纪念日；也有些是这个国家守护神的圣人节。