21.  After the Tiananmen Square Protests, the government set several barriers, aiming at the brain drain.

22.  Since then on, China has witnessed the booming number of overseas students, many of whom were not sent by the government, but rather at their own expenses as well.

23.  Another factor is that, although the US government has set restrictions towards foreign students in recent years, the demand for hi-tech specialists and top business leaders remains huge, thus even more enlightened immigration policies have been pushed forward to attract talented (or rich) students; meanwhile, compared with developed countries, the living conditions and the academic atmosphere are rather disappointing in China, as a result of which frustrated some of the top students who origin

24.  Some contests are just used as tools to attract tourists by local governments while others have been traditional activities to local people.

25.  In the old days, most overseas students were sent abroad by the governments to learn from the western world and later returned to build our then poor country.

26.  The students were selected by the government, who hoped these students could learn about the advanced theories and fresh ideas in the industrialized countries.

27.  After they finished their study, they usually came back and worked for the government.

28.  Maybe it was the government's requirement, but I believe it has something to do with their willingness to help develop their country, that drove those students come back to their undeveloped and poor motherland instead of settling down in those rich western countries.

29.  Therefore, it is necessary for our government to pay more attention to how to make China more attractive to Chinese students.

30.  On July 1st 2010, the Australian government reduced by 50 percent the number of skilled occupations which are eligible under its popular General Skilled Migration program.