罩杯尺寸=胸围-下胸围(例如:10cm=A罩杯.13cm=B罩杯.15cm=C罩杯18cm=D罩杯.20cm=E罩杯)胸罩罩杯尺寸说明表罩杯型号胸围与胸下围的差距AA约7.5cmA约10cmB约12.5cmC约15cmD约17.5cmE约20cm胸罩尺寸=下胸围尺寸(例如:胸围是83公分.下胸围是70公分)应穿着=70B的胸罩文胸尺码对照表下胸围上胸围上下胸围之差距杯型尺码70cm80cm10cm左右A70A70cm82.5cm12.5cm左右B70B70cm85cm15cm左右C70C75cm85cm10cm左右A75A75cm87.5cm12.5cm左右B75B75cm90cm15cm左右C75C80cm90cm10cm左右A80A80cm92.5cm12.5cm左右B80B80cm95cm15cm左右C80C85cm95cm10cm左右A85A85cm97.5cm12.5cm左右B85B85cm100cm15cm左右C85C90cm100cm10cm左右A90A90cm102.5cm12.5cm左右B90B90cm105cm15cm左右C90C