cūn mín men qí xīn xié lì kěn gēng huāng dì / jǐ nián hòu zhè lǐ biàn chéng le liáng tián

村民们齐心协力垦耕荒地，几年后这里变成了良田。

Villagers worked together to bring the wasteland under cultivation, and after a few years it became fertile fields.