| 1. | His voice broke when he was thirteen . 他十三岁的时候嗓音变粗了。 |
| 2. | He ran away from home at the age of thirteen . 他十三岁那年就离家出走了。 |
| 3. | The appalachians run through thirteen states . 阿巴拉契亚山脉穿经十三个州。 |
| 4. | Look at the third paragraph on page 23 . 请看二十三页第三段。 |
| 5. | Forty-three percent belonged to the new breed . 百分之四十三属于新派的类型。 |
| 6. | There are 13 states in malaysia . 马来西亚有十三个州。 |
| 7. | Some of these will be dealt with in chapter 23 . 其中许多问题将在第二十三章予以阐述。 |
| 8. | A deck of cards has thirteen cards with hearts on them . 一付纸牌中十三张上面有红桃。 |
| 9. | The gross weight is 23 kilos . 连皮二十三公斤。 |
| 10. | Kennedy now had seventy-three days to go until inauguration . 肯尼迪还有七十三天就要正式就职了。 |