1.  Due to the birth control policy, most family only has one child.

2.  Well , that policy is not realistic and not in date .

3.  Pressures on contemporary Chinese women\

4.  For governments, they should do many tries, such as making policy related to this and spend much more money on pollution, to solve the problem.

5.  Even since 1979, when the opening-up policy was issued and formal relations with America were eventually established, contract laborers and overseas students still were counted as a main type of Chinese emigrants, along with a relatively small but swiftly increasing number of well-educated or highly-skilled individuals, classified as 'technique immigrants'.

6.  6. Learn from other countries about plastic bags restriction\