Unverified90% confidenceDecision RuleTime unknown
五点式安全带优于三点式的核心在于双肩带能防止宝宝从裆部滑脱（俗称'潜水'），2岁以下必须配五点式；跨带（裆部固定杆）与安全带须为独立两套约束，缺一不可
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