| 21. | He is an honest chap at base . |
| 他本质上是个老实人．
|
| 22. | We camped at the base of the mountain. |
| 我们在山麓宿营．
|
| 23. | Misunderstanding is at the base of most international troubles. |
| 误解是多数国际争端的根源．
|
| 24. | His criticism was off base . |
| 他的批评是不正确的．
|
| 25. | The soldier was arrested for being off base after the curfew. |
| 那个士兵被押起来了，因为他在熄灯号吹过以后擅自离开营房．
|
| 26. | This question caught me off base . |
| 这问题一下子把我难住了．
|
| 27. | lamp stands on a circular base . |
| 那盏灯立于圆形的底坐上．
|
| 28. | BC is the base of the triangle ABC. |
| ＢＣ是三角形ＡＢＣ的底边．
|
| 29. | An acid can react with a base to form a salt. |
| 酸与碱会起化学反应生成盐。
|
| 30. | He pegged the ball to the first base . |
| 他把球掷到一垒。
|