These reactions influence how our genetic code is expressed: how each gene is strengthened or weakened, even turned on or off, to build our bones, brains and all the other parts of our bodies.
这些反应影响着我们的遗传密码的表现方式：每个基因是如何被加强或削弱，甚至其作用机制是如何被打开或关闭，从而构成我们的骨骼、大脑以及身体的其他部位的。
But astonishingly, almost half of our bone mass is soft and alive, allowing our bones to bend.
但是令人惊讶的是，我们骨骼中几乎一半的物质是柔软的，活动，可以使我们的骨骼弯曲。
All blood cells are produced in the bone marrow. As children, most of our bones produce blood.
所有血细胞都在骨髓中生产。对孩子们来说，我们的大多数骨骼都产生了血细胞。
"Vitamin D has become a very hot topic in medicine now as we are discovering very high levels of vitamin D deficiency in our population, not only in the U.S.,but worldwide" Vitamin D helps our bodies absorb calcium and helps form and maintain strong bones.
VOA: standard.2010.05.28
"We have been tasked by our respective presidents the foreign minister and I, to put meat on the bones, so to speak, to get to work to make sure that the expectations of both President Zuma and President Obama are met as we work more closely together on our bi-lateral relationship as well as on regional and global challenges.
VOA: standard.2009.08.08
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