世界上最小的摩托，哈哈

http://mp.weixin.qq.com/s?__biz=MzA5NTM0ODkxOA==&mid=200378061&idx=1&sn=1594c9c4bf0ad69eb4f6dfaf4b2173d4&scene=2&from=timeline&isappinstalled=0#rd

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