Unverified85% confidenceDecision RuleTime unknown
牵引绳有效长度建议在1.5-2米之间：短于1米限制孩子探索空间易引发反感，长于2.5米则失去防走失意义、来不及反应
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
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