[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

少儿排球训练优先选PU/超纤软皮排球(重量200-230g,标准5号成人球为260-280g),软皮球触感软、砸手痛感低,能减少孩子对垫球的恐惧

1
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90%
Confidence
Long-term
Relevance
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