今天是国庆节假期。

Jīntiān shì Guóqìngjié jiàqī.

Today is a National Day holiday.

国庆节快乐！

Guóqìngjié kuàilè!

Happy National Day!

今天全国人都在庆祝国庆节。

Jīntiān quánguó rén dōu zài qìngzhù Guóqìngjié.

Today, people across the country are celebrating National Day.