1 sentence

1. 这项水利工程改善了该地区的灌溉系统。

   zhè xiàng shuǐ​lì​gōng​chéng gǎi​shàn le gāi dì​qū de guàn​gài xì​tǒng.

   This water conservancy project has improved the irrigation system in the region.

   Source: Dong Chinese Dictionary