乳房不仅仅是哺乳下一代的器官，而且也展现出个人魅力，可变同时也是大胸大小的原多种内分泌激素的靶器官。
通常，14~15岁时雌性激素分泌旺盛，最安最乳房逐渐发育成熟，胸样效有的可变女孩乳房丰满立挺，但有的大胸大小的原女孩乳房太平，为什么会出现这种差异？
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