2 sentences

1. 中国古代有四大发明。

   Zhōng​guó gǔ​dài yǒu sì dà fā​míng.

   Ancient China had four great inventions.

   Source: Dong Chinese Dictionary

2. 活字印刷术是中国古代的四大发明之一。

   huó​zì​yìn​shuā​shù shì Zhōng​guó gǔ​dài de sì​dà fā​míng zhī​yī.

   Movable type printing is one of the four great inventions of ancient China.

   Source: Dong Chinese Dictionary