| 1 | The sun and the moon shuttle back and forth - how time flies. | |
| 2 | Time continues, times flies, and this world remains. | |
| 3 | Time is like an arrow, time elapse quickly, 50 years extraordinary years blends in historical endless flow. | |
| 4 | Time flies like a shuttle. The flight of time, I had as a teacher, for Renqi, mother. | |
| 5 | Time flies like an arrow, days come and go and passed half a semester. |