| 1. | The earth rotates once a day on its axis .
地球绕它的自转轴一天旋转一周。 |
| 2. | Another group calls lonely old people once a day to chat a little .
又有一个小组每天看一次孤寡老人，跟他们聊聊天。 |
| 3. | Deliveries are normally made only once a day to private homes, twice a day to offices .
通常每天只送一次信到私人住宅，送两次信到办公室。 |
| 4. | Clean and disinfect your home at least once a day
家里至少要每天消毒一次。 |
| 5. | Each group may attempt the lottery only once a day
每组游客只能参加一次抽选活动。 |
| 6. | Clean and disinfect your home at least once a day
家居应至少每日消毒一次。 |
| 7. | Dustbins must be emptied at least once a day
垃圾桶必须至少每天更换一次。 |
| 8. | I have to mop the kitchen floor at least once a day
我每天至少要把厨房地板擦洗一次。 |
| 9. | Soiled linen must be sent for laundry once a day
脏的布草必须每天更换。 |
| 10. | Watered once a day ， the flower will grow very well
如果每天浇一次水，这花会长得很好。 |
