Everything,however,has two sides.Tourism gives rise to a number of problems.For instance,it becomes a burden to our inefficient transportation system.ª© 7 ,the living standard of the average Chinese is still not high 8 to be able to afford the many different sorts of expense during long distance travels.ª© 9 ,there are still a lot of obstacles 10 (hinder)the expansion of tourism in our country.ª¤