| 21. | pass a barrier , sentry, checkpoint, etc |
| 通过障碍, 哨卡, 检查站等
|
| 22. | a weak barrier , defence, team |
| 不结实的挡板, 无力的防御, 弱队
|
| 23. | abolish the barrier between classes |
| 消除阶级壁垒
|
| 24. | break down [demolish, remove, teardown] a barrier |
| 拆除障碍物；消除障碍
|
| 25. | break through a barrier |
| 突破障碍
|
| 26. | build [erect,place,set up] a barrier |
| 设置障碍
|
| 27. | constitute a barrier to |
| 构成对…的障碍
|
| 28. | create a barrier |
| 制造障碍
|
| 29. | form [constitute] a barrier |
| 构成障碍物
|
| 30. | jump one barrier after another |
| 越过一个又一个障碍物
|