内容要点：1）你所看到的不文明行为及危害；
2）为建设美丽中国，提出你的倡议（至少两点）；
3）开头和结尾己为你写好，不计入总词数；
4）不得出现真实姓名。
注意：1）词数100〜120；
参考词汇：吐痰spit；刻画scratch；不文明行为immoral behaviors
Dear editor,
I am writing to tell you about what I saw while traveling during this winter vacation.
I am writing to tell you about what I saw while traveling during this winter vacation. I was surprised to see so many immoral behaviors in public places. Some people spit at will wherever they went; some scratched their na
