5. rural-to-urban shift, infrastructure, government funding

e.g. The lack of infrastructure and government funding in a rural area is the main cause of unemployment, which can be addressed partially by the rural-to-urban shift.

6. high-rise building, sb. regards sth. as sth., eyesore

e.g. High-rise buildings are sometimes regarded as eyesores of the city.

7. space technology[C,U], commercialization, bring business opportunities, living standards

e.g. Governments should support the investment in space technology because the commercialization of such technology can bring more business opportunities and improve people's living standards.

8. historic relics, historical significance

e.g. Historic relics should be preserved because of their historical significance.

9. school activities, a sense of accomplishment, promote their well-being

e.g. School activities should be designed to give children a sense of accomplishment and improve their well-being.