2 sentences

1. 三峡大坝是世界上最大的水利枢纽工程。

   Sān​xiá dà​bà shì shì​jiè shàng zuì dà de shuǐ​lì shū​niǔ gōng​chéng.

   The Three Gorges Dam is the world's largest water conservation project.

   Source: Dong Chinese Dictionary

2. 这艘货轮正在通过三峡大坝的五级船闸。

   zhè sōu huò​lún zhèng​zài tōng​guò Sān​xiá dà​bà de wǔ jí chuán zhá.

   The freighter is passing through the five-stage ship lock of the Three Gorges Dam.

   Source: Dong Chinese Dictionary