1.  After the open-door policy, the government courage the foreign and domestic investment to develop in China.

2.  Both domestic companies and joint-venture companies need more labours and capable people.

3.  After several years of domestic study, excellent students have a strong basic of knowledge.

4.  Criminals in economic field like money corruption destroy the normal domestic economy.

5.  They are bound by domestic chores, have no opportunity to go to school and get jobs outside the home.