[KongchangAI]
Unverified78% confidenceCautionTime unknown

不建议为小学低年级学生购买硬壳箱式/拉杆书包作为日常用:拉杆结构增加2-3倍自重,且上下楼梯需拎起反而伤腰,仅适合校园全程平地推行的特定情况

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78%
Confidence
Long-term
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