Unverified90% confidenceDecision RuleTime unknown

1-2岁选大颗粒积木（如乐高得宝Duplo/软胶积木），3岁以上可过渡到小颗粒（乐高经典盒City系列），4岁前不建议纯小颗粒积木

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Unverified颗粒尺寸适龄性与拼搭复杂度不可兼得：大颗粒安全但能搭建的造型精细度低，标准颗粒可实现复杂结构但不适合幼儿；4-6岁是从大颗粒过渡到标准颗粒的窗口期75% similar Unverified按年龄阶梯选购：0-1岁软胶/布艺→1-3岁大颗粒（Duplo类）→3-6岁小颗粒基础套装→6岁以上主题/机械/编程套装，可复用地基保持兴趣延续71% similar

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