| 1. | They sprinkled pesticide to bug the potatoes . 他们喷撒杀虫剂给马铃薯除虫。 |
| 2. | Systemic insecticides have shown particular promise . 内吸杀虫剂看来特别有效。 |
| 3. | Both aldrin and chlordane are valuable insecticides . 艾氏剂和氯丹都是重要的杀虫剂。 |
| 4. | Most pesticides do not comply with this ideal . 大多数杀虫剂在这一点上都不完全理想。 |
| 5. | He needs a pesticide that will kill corn borers . 他需要一种能消灭玉米螟虫的杀虫剂。 |
| 6. | This definition does not exclude the use of pesticides . 这个定义并不排除使用杀虫剂。 |
| 7. | Pesticides have some features peculiar to themselves . 杀虫剂具有某些它们本身所独有的特点。 |
| 8. | Resistance to insecticides has been apparent for many decades . 杀虫剂抗药性的出现已有数十年。 |
| 9. | Farm workers frequently come in contact with these insecticides . 农场工人常常接触这些杀虫剂。 |
| 10. | Insecticides are widely used for controlling most insect pests . 杀虫剂广泛应用于防治大多数害虫。 |