| 1. | Things should be taken up in order of priority . 办事应有个先后次序。 |
| 2. | It is hard to trace the order of discovery . 很难查出谁是最先发现的人。 |
| 3. | The social order of ants is very interesting . 蚂蚁的社会结构非常有趣。 |
| 4. | The order of events may be changed . 反应的次序是可以加以改变的。 |
| 5. | They are studied in order of importance . 它们是按轻重缓急的顺序来研究的。 |
| 6. | That would be a reversal of the order of host and guest . 这就主客颠倒了。 |
| 7. | The texts should be graded in order of difficulty . 课文要按难易程度编排。 |
| 8. | The order of partial differentiation is immaterial . 偏微商的次序并不重要。 |
| 9. | The order of the day was to be as follows . 那天的日程如下。 |
| 10. | The order of adding the vectors is unimportant . 矢量相加的次序是无关紧要的。 |