[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

初学穿绳的2-3岁幼儿应选带硬质塑料头(约3-4cm)的穿绳,柔软纯棉绳虽安全但难以穿入;4岁以上精细动作成熟后可换软绳提升难度

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