weed killers

同根派生

英汉例句

• Tell people why it is harmful to use insecticides and weed killers.
  （一）告诉人们使用杀虫剂，除草剂等化学药品是如何有害。
• 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。
• Tell people why it is harmful to use insecticides and weed killers .
  （一）告诉人们使用杀虫剂，除草剂等化学药品是如何有害。
• You need a selective weed killer that won't damage your garden flowers.
  你需要一种精选的除草剂，不会伤害你花园的花。
• Modern weed killers are put in two categories, selective (affecting specific plant species) and nonselective (affecting plants generally).
  现代的除草剂可分为两类:选择性的（仅对特定的植物有效）及非选择性的（作用及于各种植物）。