grass sod

基本解释

A piece of sod has grass on the top and soil on the bottom.
一块儿草皮的顶部是草，底部是土壤。
If a test finds that soil has too much lead, you might be advised to remove the soil or cover it with sod grass.
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。
A piece of sod has grass on the top and soil on the bottom. It can provide thick green grass without the work or wait required to grow a lawn from seed.
每块草皮都由上面的草和下面的泥土两层组成，它让你马上看到一块厚厚的绿色的草皮而不用等它从种子慢慢发芽长起来。

If a test finds that soil has too much lead, you might be advised to remove the soil or cover it with sod grass.
Sod can grow at times and in places where growing grass from seed is difficult.
A piece of sod has grass on the top and soil on the bottom.

Fake grass costs nearly twice as much as sod to install, though it costs less to maintain.
ECONOMIST: Monitor