| 21. | He was off in a crack before I could address him. |
| 我还没来得及跟他讲话，他转眼就走掉了。
|
| 22. | He was on his feet again in a crack . |
| 他即刻又站了起来。
|
| 23. | This is her first crack at writing a book. |
| 这是她第一次尝试写书。
|
| 24. | There is a crack in your mind. |
| 你神经有点毛病。
|
| 25. | Open the window a crack . |
| 把窗开一条缝。
|
| 26. | If he continues to work at that pace he'll certainly crack up. |
| 如果他继续以那种速度工作，他的身体一定会垮的。
|
| 27. | The rainwater dripped through a crack on the ceiling. |
| 雨水从天花板的裂缝中漏下来。
|
| 28. | The hunters went into the woods at ( the crack of ) dawn. |
| 猎人们拂晓时走进了森林。
|
| 29. | Open the window a fraction [a crack , a bit ], please. |
| 请将窗子打开一点。
|
| 30. | a good [ crack ,great] hand at (doing) sth. |
| 做某事的能手，行家。
|