noun 下载 🔗分享 农药,杀虫剂 Anything, especially a synthetic substance but also any substance (e.g. sulfur), or virus, bacterium, or other organism, which kills or suppresses the activities of pests. Examples : "The farmer used pesticides to kill the insects eating his crops. " 农民使用农药来杀死吃他庄稼的虫子。 environment agriculture science substance biology chemistry plant insect organism 与AI对话词汇游戏阅读练习