Nicotine replacement products provide the body with small amounts of the chemical through forms other than cigarettes.

VOA: special.2010.03.09

And then we'll talk about how you can build something to replace a complicated small part in the body like that.

然后我们再讨论工程师们如何构建,能够取代体内如此精细小巧器官的东西

耶鲁公开课 - 生物医学工程探索课程节选

The minerals are present in small amounts in food and as a function of body weight as well.

矿物质,在食物中所占比例非常小,在体重中所占比例也非常小

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

His whole small body was full with holes from the bullets.

VOA: standard.2009.08.22

They're small molecules that - whose principal function in the body is to carry signals from one cell in the nervous system to another.

它们都是小分子,在体内主要功能是在,神经系统内将信号,从一个细胞传导到另一个细胞

耶鲁公开课 - 生物医学工程探索课程节选

If God gathers up all those small molecules, that had composed my body, reassembles them in the right order and put these calci molecules next to that hydrogen molecules, so forth and so on, reassembles them in a right way.

如果上帝重组了所有构成我肉体的，微粒分子，将它们以正确的次序重组,把大量的钙生分子和,氢分子放在一起，组合起来，将它们以对的次序重组。

耶鲁公开课 - 死亡课程节选

A small molecule gets produced by cells in one part of the body, circulates in the blood, estrogen enters cells, and sometimes that estrogen is able to penetrate deep within the cell, even into the nucleus.

雌激素是由身体某部分细胞分泌的,随着血液循环进入细胞,有时雌激素能够进入到细胞内部,甚至进入到细胞核内

耶鲁公开课 - 生物医学工程探索课程节选