| 1. | I had lifted my hand against a pilot on duty . 我打了一个值班的掌舵。 |
| 2. | A policeman is not allowed to smoke on duty . 警察值班时不准吸烟。 |
| 3. | There's a watchman always on duty . 有一个守夜的人,整夜都值更。 |
| 4. | A policeman must not smoke while he is on duty . 警察当班值勤时不得抽烟。 |
| 5. | We 'll take our turn on duty at 1 p.m . 我们下午一点接班。 |
| 6. | Hery is on duty eight hours a day . 享利每天工作八小时。 |
| 7. | Experienced banquet waiters must also be on duty . 还必须让有经验的宴会服务员当班。 |
| 8. | The room was crowded and barrelhouse was on duty . 店堂里人满满的,巴雷尔豪斯正在照应着。 |
| 9. | We have so arranged matters that one of us is always on duty . 我们已经做了安排,使得我们之中总有一个人在值班。 |
| 10. | Inside i saw the head nurse, who said miss barkley was on duty . 我在里面见到护士长,护士长说巴克莱小姐现在上班。 |