chlorphrifos

例句：

1. 1.This pesticide is effective against a wide range of insects.
   这种杀虫剂对广泛的昆虫有效。
2. 2. The farmers used this chemical to control the weeds in their fields.
   农民们使用这种化学物质来控制他们田地中的杂草。
3. 3. Due to its toxicity, chlorphrifos should be handled with care and stored away from children and pets.
   由于其毒性，应小心处理并远离儿童和宠物储存。