[KongchangAI]
Unverified75% confidenceCautionTime unknown

拉杆书包不建议作为护脊首选:拉杆结构占据背板位置使背板无法贴合脊柱,且拉行时孩子单侧扭腰、上下楼需提拎更重。除非通学路面平整且负载极重

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