Unverified85% confidenceDecision RuleTime unknown
背带宽度≥1.5cm可有效分散肩部压力，B罩杯以上或需长时间穿着（>8小时）建议选背带宽度2cm以上；宽背带虽减压但在无袖/露肩装下易外露，需权衡穿搭场景
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