Unverified70% confidenceTradeoffTime unknown
弹簧伸缩绳回弹力越强越省力但突然回缩可能打到宝宝或成人,缓冲式钢丝绳更安全但收纳时不如强弹簧利落
1
Sources
70%
Confidence
Long-term
Relevance
-
First Seen
Sources
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