(单词翻译:单击)
The annual net population growth in China is some 10 million, due to its large population base. However, infertility has started to affect the population structure and social development badly, and should be controlled.
The two hospitals that are authorized4 to operate IVF in Yunnan have performed more than 1,200 such operations.
Pollution, disease, malnutrition5 and bad habits like smoking, drinking and hot bath should be blamed for male infertility. Besides, the problem is attributable to the fast life pace and fierce competition in the modern society are attributable, too.
Social pressures and late marriage are the two main reasons for declining female fertility. It is best for women to have babies before 30, and the latest pregnancy6 age should not exceed 35. Doctors suggest that young women have babies first, before devoting themselves to their career.
1
census
![]() |
|
n.(官方的)人口调查,人口普查 | |
参考例句: |
|
|
2
infertility
![]() |
|
n.不肥沃,不毛;不育 | |
参考例句: |
|
|
3
annually
![]() |
|
adv.一年一次,每年 | |
参考例句: |
|
|
4
authorized
![]() |
|
a.委任的,许可的 | |
参考例句: |
|
|
5
malnutrition
![]() |
|
n.营养不良 | |
参考例句: |
|
|
6
pregnancy
![]() |
|
n.怀孕,怀孕期 | |
参考例句: |
|
|