[KongchangAI]
Unverified85% confidenceCautionTime unknown

背包自重超过300g或容量过大(>5L)不适合3岁以下:这个年龄脊椎发育未成熟,加上物品后总负重不应超过孩子体重的10%,大容量易被家长塞满导致压肩

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85%
Confidence
Long-term
Relevance
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