Learning the physiological features and hygiene education of the puberty, it's important to develop the younger's excellent psychological qualities and sound bodies.

了解青春期的生理变化特征及其卫生，对青少年身心的健康成长和良好心理素质的培养具有重要意义。

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Learning the physiological features and hygiene education of the puberty, it's important to develop the younger's excellent psychological qualities and sound bodies.

了解青春期的生理变化特征及其卫生，对青少年身心的健康成长和良好心理素质的培养具有重要意义。

youdao