避孕 by 陈全凤 2015临床医学(八年制) - Friday, 21 February 2020, 11:10 PM Number of replies: 0 阻断精子排出：输精管结扎 阻断卵子排出：输卵管结扎 阻断精卵相遇：避孕套、避孕药 Permalink
