If a test finds that soil has too much lead, you might be advised to remove the soil or cover it with sodgrass.
如果检测表明土壤含铅量很高,就需要把这部分土壤移走或者用草皮草盖住它。
2
With a good shovel, you can cut an outline of the garden in the grass. Your child can then pull the sod away and set it aside it for composting.
先用一把好铲子在草地上划出花园的轮廓。你的孩子可以把草皮拉开,把它放在一边用作堆肥。
3
It was a wary animal, once ubiquitous on the tall grass prairies, that roamed widely and interacted with every plant, insect, and bird making a home over the sod.