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第二性征的发育,使人们仅凭外观就可以清楚地鉴别出不同个体的性别。但是,无论是男性还是女性,同一性别中的不同个体,其第二性征都会有所差异,有时差异还可能相当明显,这使得许多进入青春期的少男少女倍感疑惑和担心。作为子女性教育第一任老师的父
The development of secondary sexual characteristics, so that people can clearly identify the appearance of different individuals of different genders. But, whether male or female, different individuals in the same gender have different secondary characteristics, and the discrepancy may be quite noticeable, which makes many adolescent boys and girls feel puzzled and worried. As the father of the first teacher of child sex education