Dear Mr. President,

My name is Li Ming, a sophomore majoring in International Trade. Having learned and lived on campus for nearly two years, I have found university life most exciting and instructive.

What happens around me every day has left a deep impression on me, but what strikes me most is the canteen service on campus, so that for some time I have had the keen desire to write to you, sharing with you my positive comments on and negative feelings about it. On the one hand, we are happy to see that the canteen staff has been sparing no efforts to guarantee food quality. As a result, we are relieved from the anxiety that some food might be dirty, stale and inedible. We also feel contented with the service provided by the canteen, enjoying food in a homely atmosphere. On the other hand, improvements should be made for the simple reason that prices for dishes are unreasonably high, and that the canteen is not spacious enough and too noisy at times.

Therefore, to improve the overall service of the canteen the strengths should be encouraged, while the weaknesses ought to be overcome by lowering prices and expanding the canteen if possible.

参考翻译：（好学英文网）

尊敬的校长：

我叫李明，是国际贸易专业的大二学生，经历了将近两年的校园生活，我感觉大学生活非常令人兴奋。

周围每天所发生的一切都让我印象深刻，但是学校食堂的服务却很难让人满意。因此有好几次我都很想给你写信，与你分享好的评论和不好的感受。一方面，食堂不遗余力的保证饭菜质量很让人欣慰，这样我们不用担心某些事物不干净，不新鲜，不宜食。对于食堂的服务我们也感到满意，学校为我们创造了家一样的氛围。另一方面，显而易见饭菜的价格太高，食堂不够宽敞，有时会很吵，这些都是需要改进的地方。

因此，应当加大力度改善食堂的整体服务，通过降低价格和扩大食堂来克服缺点。