Remember when I showed you that picture of cells attached to plastic a few minutes ago; I said those were fibroblasts that were growing on a culture dish.
还记得我几分钟前我给你们看的,细胞黏附在塑料片上的图片吧,我说过那是,生长在培养皿中的成纤维细胞
When I start getting a lot more wrinkles, I might want some plastic surgery.
当我开始有更多皱纹的时候,我也许会想做点整形。
Cross-linked is not the right word-- that is chemically bonded with repeat units to make large molecules so that when you have a bunch of large molecules together they have certain physical properties like the solid property of the plastic that you're sitting on.
交联这个词不确切,应该是由化学键连接的,重复单位构成大分子,当许多分子聚合在一起后,它们就会具有某种物理特性,就像你们正坐着的,塑料一样,具有固体特性
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