2 sentences

1. 《红楼梦》是中国四大名著之一。

   《 Hóng​lóu Mèng》 shì Zhōng​guó sì​dà míng​zhù zhī​yī.

   'Dream of the Red Chamber' is one of the four great classical novels of China.

   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