柯林斯词典pesticide /ˈpɛstɪˌsaɪd/ (pesticides) 1. N-MASS Pesticides are chemicals that farmers put on their crops to kill harmful insects. 杀虫剂 返回 pesticide剑桥词典a chemical substance used to kill harmful insects , small animals , wild plants , and other unwanted organisms 杀虫剂，农药 The pesticides that farmers spray on their crops kill pests , but they can also damage people's health . 农民在作物上喷洒的农药在杀死害虫的同时也会危害人们的健康。 比较herbicide insecticide 返回 pesticide