| 1. | We have a single room available .
我们有一间单人房间可以租（给你）。 |
| 2. | He wanted to concentrate on a single issue .
他要集中在单一的问题上。 |
| 3. | The female pore, are most commonly a single pair .
雌孔大多是一对。 |
| 4. | A single branch may bear several catkins .
一根枝条可着生几个花序。 |
| 5. | A single gene may have many effects .
单一基因可能具有很多种效应。 |
| 6. | Only a single denominator do they share .
他们只有一种共同的特点。 |
| 7. | Even a single man bad been able to balk him .
一个人就把他难倒了。 |
| 8. | Did kit live a single man all his days ?
难道吉特一直打着光棍吗？ |
| 9. | A single light burned in the empty house .
那所空房子里有一盏孤灯亮着。 |
| 10. | He laid his opponent low with a single punch .
他一拳就把对手打倒在地。 |
