As is known to us,China has the biggest population in the world,which is more than 1,300,000,000.Such a large population causes some problems in cities,that‘s the unemployment.Too many people gather in cities and the jobs are not enough.Some graduates can‘t find a job though they have left school for years.In addition,traffic jam is another problem resulting from the big population.The (共 910 字) [阅读本文] >>