Unverified90% confidenceDecision RuleTime unknown
判断球号是否合适：让孩子单手五指张开能大致罩住球体上部即为合适，若需双手抱才能控制则球偏大，会导致投篮动作变形和手腕代偿性用力
1
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90%
Confidence
Long-term
Relevance
-
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