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初潮年令是衡量个人和群体发育速度的重要指标,也可作为人民一般健康水平的标志,它受遗传和环境两种因素的影响。
The annual menarche is an important indicator of the speed of development of individuals and groups. It can also be used as a symbol of the general health of the people. It is influenced by both genetic and environmental factors.