Unverified80% confidenceTradeoffTime unknown
杆长与便携性矛盾：长杆免弯腰但携带笨重，折叠伸缩杆解决便携问题但伸缩关节是易松动/进污点，两者难以兼顾，短途遛狗优先便携折叠，长时间遛狗优先固定长杆
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80%
Confidence
Long-term
Relevance
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