[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

安全性与锋利度是矛盾:过度圆钝的塑料安全剪剪不动稍厚纸张,导致孩子反复用力或啃咬边缘;折衷选金属刀刃+圆头设计(刀尖圆但刃口正常)

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80%
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Long-term
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