求翻译：Vitamin D is important for healthy growth and development in infancy and childhood especially for normal bone growth and muscle strength.*是什么意思？

待解决

悬赏分：1 - 离问题结束还有

Vitamin D is important for healthy growth and development in infancy and childhood especially for normal bone growth and muscle strength.*

问题补充：

匿名	2013-05-23 12:21:38 维生素D是非常重要的健康成长和发展，尤其是正常的骨骼生长和肌肉力量在婴儿期和童年。*

匿名	2013-05-23 12:23:18

匿名	2013-05-23 12:24:58

匿名	2013-05-23 12:26:38

匿名	2013-05-23 12:28:18

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