Unverified82% confidenceFactTime unknown
所谓'成长型/可调节尺码'鞋通常宣称能穿1-2个尺码跨度，但3岁前脚长平均每2-3个月增长0.5-1cm，实际有效穿着期往往仅3-4个月，跨度营销水分大
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