[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

太极剑选购看剑身长度:立姿手臂下垂时剑尖应至耳垂或齐眉,简易算法为身高(cm)÷2再减去5cm即为合适剑长(含剑柄),老年人偏短5cm更利控制

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