Unverified78% confidenceTradeoffTime unknown
材质越轻薄空袋越省力，但薄款抗刮抗撕和防泼水差；每天塞满书本的高频使用场景，宁选稍重的加厚耐磨款，薄款用一学期易破角磨损
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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