Unverified75% confidenceTradeoffTime unknown
PP防水防撕材质耐用可清洗但成本高且偏硬，纸质卡片手感好成本低但不耐咬撕；0-3月宝宝不会主动抓咬时纸质卡足够，PP材质对早期视觉训练无额外增益
1
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75%
Confidence
Long-term
Relevance
-
First Seen
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