1 sentence

1. 延安整风运动是中国共产党历史上的一次重要事件。

   Yán'ān zhěng​fēng yùn​dòng shì Zhōng​guó Gòng​chǎn​dǎng lì​shǐ shàng de yī cì zhòng​yào shì​jiàn.

   The Yan'an Rectification Movement was a significant event in the history of the Communist Party of China.

   Source: Dong Chinese Dictionary