| 21. | The scheme has the chairman's seal of approval. |
| 这一计划得到主席的批准。
|
| 22. | affix a seal on a document |
| 在文件上盖印
|
| 23. | a mother seal and her pup |
| 一只母海豹和一只小海豹
|
| 24. | a seal colony |
| 海豹群
|
| 25. | an annual seal cull |
| 一年一度对体弱海豹的杀戮
|
| 26. | a watertight compartment, joint, seal |
| 水密室, 水密接合,水密封
|
| 27. | a rubber seal in the lid of a jar |
| 罐子盖儿里的橡皮密封圈
|
| 28. | seal the parcel (up) with adhesive tape |
| 用胶带把包裹封住
|
| 29. | seal the boat's hull with special paint |
| 给船体涂上特种油漆
|
| 30. | seal a bargain |
| 成交
|