BPA is commonly used in food and drink packaging, where the molecule is usually locked in as part of a complex polymer.

双酚a一般用于食品和饮料包装，其分子作为复合聚合物的一部分，通常是固定的。

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Serotonin is a messenger molecule that carries signals between nerve cells, and it is known to modulate many aspects of human behaviour, although the details are complex and controversial.

血清胺是在神经元之间传递信号的信使分子，人们已经知道它调解着人类行为的很多方面，尽管细节是复杂而有争议的。

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Like DNA, RNA is a complex molecule made of repeating units of thousands of smaller molecules called nucleotides that link together in very specific, patterned ways.

像DNA一样，RNA也是由数千个被称为核苷酸的更小分子构成的，这些核苷酸之间以非常特定的模式连接在一起。

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Botox is an injection of a molecule, or a complex molecule but a molecule, so in what ways would that be Biomedical Engineering?

肉毒杆菌素是一种注射用分子,或者说是一种复杂的分子,但它只是一种分子,它与生物医学工程有怎样的联系呢

耶鲁公开课 - 生物医学工程探索课程节选

Well, the way that your immune system recognizes it is that all the cells of our body express a molecule on their surface, a membrane protein called the MHC1 complex.

而免疫系统识别的方法是,身体内所有细胞在其表面表达一种分子,一种叫做MHC1复合体的膜蛋白

耶鲁公开课 - 生物医学工程探索课程节选

It usually takes two years to scale up production of such a complex molecule.

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This super-extremophile, using genetic instructions from a few different microbes, would create a complex a molecule called Acetyl Coenzyme-A, or Acetyl Co-A for short.

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In the case of a newer drug class called biologics, the cost could be even higher, as they are highly complex large-molecule medicines that cannot be easily produced.

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