假定你是李华,你的美国笔友 Peter给你发来封电子邮件,信中说他有几个同学为了显示自己成熟而开始吸烟。请给他回信说明青少年吸烟的危害。
注意:1.词数100左右(开头和结尾已给出,但不计入总词数)
2.可以适当增加细节,以使行文连贯
Dear Peter,
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Best wishes

Li Hua