2 sentences

1. 战士们渡过黄河，向河西进发。

   zhàn​shì men dù​guò Huáng Hé, xiàng Hé​xī jìn​fā.

   The soldiers crossed the Yellow River and marched toward Hexi.

   Source: Dong Chinese Dictionary

2. 他打算暑假去河西地区考察古丝绸之路的历史遗迹。

   tā dǎ​suàn shǔ​jià qù Hé​xī dì​qū kǎo​chá gǔ Sī​chóu​zhī Lù de lì​shǐ yí​jì.

   He plans to go to the Hexi region during the summer vacation to investigate the historical relics of the ancient Silk Road.

   Source: Dong Chinese Dictionary