题目内容：

    Chinese President Xi Jinping has sent a reply letter to a group of U.S. high school students, encouraging them to help promoting friendship (增进友谊) between the Chinese and American peoples (民族).

1.The group of students from U.S. high school has written in Chinese to Xi, asking him about his work, life and hobbies.

The students said in their letter that they are studying Chinese, that they love Chinese language and characters (中国汉字), as well as music and Chinese food, and that they would love to have the chance to visit China.

In hid replay letter to the students, 2.Xi said he felt their love for the Chinese language and their interest in the Chinese culture.

3.学 习 中 文 有 助 于更 好 地 了 解 中 国， make more Chinese friends, and also make many friends who can speak Chinese across the world, Xi said.

He spoke highly of the students' neat writing and correct wording (准确的言辞) in Chinese, and encouraged them to continue working hard to make greater achievements in Chinese learning.

"I have visited the United States for many times, and was deeply impressed by the beautiful views, warm-hearted people and rich culture there. 4.我已经交了很多美国朋友，包括年轻的朋友。" the president said.

"My job is to serve the people. It is very tiring, but it's also filled with sense of achievements," he added.

The president said he has strong interest in philosophy (哲学), history, literature, music and sports, among others, adding that many of his hobbies have been kept since his middle school years.

5.To see something once is better than to hear about it a hundred times, the president said the students are welcome to visit China.

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