Unverified78% confidenceFactTime unknown
书包底部是否有加固防泼水底板决定放地上时的耐脏耐磨，PVC或防水底料能显著延长使用寿命，是耐用性易被忽视的关键点
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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