BACKGROUND: Nutritional factors play an important role in skeletal development during growth.

背景：在生命生长过程中，营养因素在骨架发育上扮演着重要的角色。

youdao

BACKGROUND: Nutritional factors play an important role in skeletal development during growth.

背景：在生命生长过程中，营养因素在骨架发育上扮演着重要的角色。

youdao