coloring earth

例句：

1. 1. The artist used colored earth to create a beautiful landscape painting.
   这位艺术家使用着色土创作了一幅美丽的风景画。
2. 2. The children were busy coloring earth in their sandbox.
   孩子们在沙箱里忙着着色土。
3. 3.The farmer applied colored earth to the soil to improve its fertility.
   农民将着色土施于土壤中以改善其肥力。