“除草剂”造句

经过反复施用除草剂，杂草得以彻底根除。
With repeated applications of weedkiller, the weeds were overcome.

这种除草剂在潮湿的土壤中分解.
This herbicide degrades in moist soil.

杂草对某些除草剂的抗药性已显现出来.
Resistance of weeds to certain herbicides is beginning toshow up.