题干
假定你是大庆实验中学的学生李健。最近，学校打算为同学们制作统一的校服，请你给闫校长写一封建议信，要点如下：
1.写信的目的；
2.对校服的布料，款式等提出建议并说明理由。
注意：1. 词数100左右；2. 可以适当增加细节，以使行文连贯的；3. 开头和结尾已为你写好，不计入总词数。
Dear Mr. Yan,
……
Yours sincerely,
Li Jian
答案(点此获取答案解析）
Dear Mr. Yan,
Knowing that our school will order uniform for us, I am writing to make some suggestions.
Our uniform is worn almost every day, so it would be great if you could understand what students like. First of all, I'd prefer it to
