Unverified90% confidenceFactTime unknown

背负系统的背长可通过魔术贴无级调节，官方设计可随儿童生长持续使用数年，是其核心卖点，但需注意孩子背长需在其可调范围内才能正确匹配

1

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90%

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Long-term

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Osprey Ace 儿童背包 38Lproduct_sku 儿童运动背包category

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