[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

球杆长度选择标准:3-5岁选60-70cm,6-8岁选70-80cm,9-12岁选80-90cm。判断方法:孩子直立握杆时杆头触地、杆顶端约到肚脐至胸口之间为合适,过长会导致挥杆动作变形

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