| 1. | There is no restriction [limit] on the number of people . 人数不限。 |
| 2. | A number of factors contribute to this . 对于此总可以归诸于许多因素。 |
| 3. | A number of houses were burnt down in the fire . 好些房子给烧毁了。 |
| 4. | Businesses operate in a number of environments . 商业的环境错综复杂。 |
| 5. | We have lived here quite a number of years . 我们在这儿住了好些年了。 |
| 6. | He has left a number of books with me . 他把好些书存放在我这儿了。 |
| 7. | There are any number of improbabilities . 不合情理的地方多不胜举。 |
| 8. | The sheer number of banks was overwhelming . 银行的数量也太多了。 |
| 9. | Within this lie a number of cell organelles . 里面有许多细胞器。 |
| 10. | An engine lathe consists of a number of parts . 普通车床由若干部件组成。 |