广播电视英语短句 第 328 课：铺设道路-4

Some gardeners prepare an area by removing the existing top soil and grass. 一些园艺爱好者在准备种植场地时会使用铲子。

This can be done with a shovel, hoe or sod-cutter machine. 锄头或割草器来移除已有的表土和青草。

But live roots or weeds might remain below the surface. 但是那些活的根基和杂草可能会遗留在表土之下。

Another preparation method is to till the ground completely. 另一个准备方法能彻底地解决刚才的问题。

Still another involves using an herbicide chemical to kill the existing grass. 尽管此方法涉及使用灭草剂的化学药品来去除这些已存的青草。