national people's congress 全国人民代表大会
national culture 民族文化
national policy 国家政策
national conditions 国情；民情
national highway 国道
例句：
HappyNational Day!
国庆节快乐!
This year's National Day is coming.
今年的国庆节马上就要到了。
On National Day holiday, I went to LakeTai with my family.
在国庆假期，我和我的家人去了太湖。