每到放学，家长接学生的车辆总会导致校门口的交通过度拥挤，学校对此非常苦恼。假如你是高二年级的学生李华，请给校长写一封信，分析一下该现象产生的原因，并提出你的建议。
注意：120词左右；开头已给出，不计入词数。
Mr. Wang,
I’m writing to you to share my opinions about the problem of heavy traffic every day after school at our school gate.
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Best wishes!
Yours sincerely,
Li Hua