| 1. | At a subsequent time he relapsed . 后来有一次,他的老毛病果然又发作了。 |
| 2. | Oceanographers once tracked waves . 有一次海洋学家跟踪一些波浪。 |
| 3. | He once covered a mile in three minutes . 他有一次在三分钟内跑了一英里。 |
| 4. | Once she did go down with him to the lands . 有一次玛丽真的跟他下地去了。 |
| 5. | He was once seen to come out of the place . 有一次有人瞅见他从这里走出来。 |
| 6. | I have a date with her next month . 我与她在下月有一次约会。 |
| 7. | I did once send some mangos to the states by air . 我曾有一次空运芒果到美国。 |
| 8. | He caught frances once looking at his head . 有一次他发觉弗朗西丝盯着他的头。 |
| 9. | He gets home leave every two years . 他每两年有一次探亲假。 |
| 10. | Once castle had visited him in his flat . 有一次,卡斯尔到他的住处去看望了他。 |