| 1. | First, high birthrates cannot be altered substantially overnight .
第一，高出生率不可能在一夜之内就被改变。 |
| 2. | In the case of population growth this momentum can persist for decades after birthrates drop .
人口增长的这种势头在出生率下降后还可以持续四年。 |
| 3. | The census bureau says birthrates have dropped in every area of the world except africa .
人口普查局说，除了非洲之外，世界各地的出生率近来已有所下降。 |
| 4. | The child birthrate in that area has doubled
该地区的婴儿出生率已经增加了一倍。 |
| 5. | The birthrate in france has been declining for several years
近几年来,法国的出生率一直在下降。 |
| 6. | The problem is a hangover from the high birthrate of the 50 ' s
这问题是五十年代高出生率的遗留物。 |
| 7. | We will keep the birthrate low and improve the health of newborns
稳定低生育水平，提高出生人口素质。 |
| 8. | People objected to the idea that it is because of drop of birthrate
人们反对这一看法来自于出生率的下降 |
| 9. | The birthrate is on the decrease
人口出生率正在下降。 |
| 10. | The birthrate is down this year
今年出生率下降。 |
