Pesticides are chemicals that farmers put on their crops to kill harmful insects. 杀虫剂
noun [物质名词] 杀虫剂，农药
Samples of the water contained pesticide. 水样中含有杀虫剂。
- pesticide 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 47 Too high a price? pesticide 名词: 杀虫剂
