假定你是李华,你的美国朋友 Peter来信说对中国功夫很感兴趣,并请你介绍相关情况。请你给他写封回信,内容包括:
1.历史起源;
2.适宜人群;
3.风格形式。
要求：
1.词数：100左右；
2.可合理增加细节，以使行文连贯；
3. 开头和结尾已给出,但不计入总词数。
Dear Peter,
It's great to hear from you.
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Best wishes!
Yours,
Li Hua
