| 1. | Credit is usually only given for thirty days . 信用期通常为30天。 |
| 2. | She is under thirty , i should think . 我想她还不到三十(岁)。 |
| 3. | He was struck down by cancer at the age of thirty . 他三十岁时死于癌症。 |
| 4. | She has been on the stage for over thirty years . 她有三十多年的艺龄。 |
| 5. | Some thirty people attended the funeral . 参加葬礼的约有三十人。 |
| 6. | It's some thirty kilometres from here . 离这儿差不多有三十公里。 |
| 7. | She was about thirty and quite pretty . 她大约有三十岁光景,生得很漂亮。 |
| 8. | I didn't function as i did when i was thirty . 我不像三十岁时那样顶用了。 |
| 9. | By sunset we had covered thirty miles . 到日落的时候,我们已走了三十英里。 |
| 10. | A building thirty stories high had been erected . 一幢三十层的大楼已经落成。 |