| 单词 | secondary sex characteristic |
| 释义 | secondary sex characteristic第二性征 secondary sex characteristic secondary sex characteristic n.（名词）Any of various genetically transmitted anatomical, physiological, or behavioral characteristics, such as voice quality, abundance of facial hair, or breast development, that first appear in humans at puberty and differentiate between the sexes without having a direct reproductive function.第二性征：任一种受遗传影响的在结构、身体或行为上的特点，如在青春期开始出现的音质变化、生胡须或胸部发育等特征，两性之间是存在差导的，并没有直接的生殖功能 |
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