grass killer

• 除草剂

grass killer的用法和样例：

例句

1. The grass on the lawn grows wildly, we must use some weed killer.
   这片草地的草长得太杂了，我看要用些除草剂了。
2. Now, a growing number of weeds are developing resistance to the world's most popular weed killer.
   现在，数量日益增长的一些杂草下大对世界上最受欢迎的除草剂产生抗体。