There was not fancy, but having a chance, having a beauty together, sitting down around the table, being presented with graduation certificates gradually and individually.

没有幻想，但借此机会，所有人度过了美好时光，他们围坐在桌前，一个一个地,颁发毕业证书。

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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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