题干
随着经济的发展，越来越多的家庭拥有小汽车，因此，放学时，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。假如你是高三年级的学生李津，请给张校长写一封信，分析一下该现象产生的原因以及潜在的危险，并提出你的建议：
1).鼓励同学们坐公交车或者选择共享单车上学；环保便捷；
2).提醒家长有序停车；
3).各年级可以分时间放学。
注意：词数100左右；开头已给出，不计入词数。（共享单车Bicycle-sharing）
Mr. Zhang,
I'm writing to you to share my opinions about the problem of heavy traffic every day after school at our gate.
Yours,
Li Jin
答案(点此获取答案解析）
Mr. Zhang, I'm writing to you to share my opinions about the problem of heavy traffic every day after school at our school gate. With the development of economy, more and more families begin to have cars of their own, which contributes partly to the probl
