建党节是一个重要的历史时刻。

CPC Founding Day is an important historical moment.

我们在建党节这天学习党的历史。

We learn about the history of the Party on CPC Founding Day.

建党节是中国共产党成立的纪念日。

CPC Founding Day is the anniversary of the founding of the Communist Party of China.

学校在建党节组织了特别的纪念活动。

The school organized special commemorative activities on CPC Founding Day.

每年的建党节，全国各地都会举行庆祝活动。

Every year on CPC Founding Day, celebrations are held across the country.