at national day和in national day区别,national day holiday用on还是at

at national day释义：

在国庆节

例句：

What do you eat at National day?

你们在国庆节吃什么？

in national day释义：

在国庆节

例句：

Hope you have a good time in National Day!

祝愿你国庆玩的愉快！