College graduates have a strong preference for the city where their schools locate. The nu

mber of graduates staying in central cities is far larger than that of those who leave. Many graduates are still confused about the question—which is better, first or second-tier cities？ Upon graduation, more and more graduates decide to seek employment in second-tier cities. However, a large number of graduates still pour into the first-tier cites to make their dreams real. Should one "stick to" a metropolis or "retreat to" a second-tier city？ There is no best choice, but only the most appropriate one. Whats your opinion on this？ Write an essay of about 400 words and supply your own title. In the first part of your writing you should state clearly your main argument, and in the second part you should support your argument with appropriate details. In the last part you should bring what you have written to a natural conclusion or make a summary. Marks will be awarded for content, organization , grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.