n.除莠剂，除草剂...

weedkiller的复数形式为：weedkillers...

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

weedkiller的音标：weedkiller的英式发音音标为：['wi:dkɪlə(r)]weedkiller的美式发音音标为：['wiːdkɪlər]...