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Polymers may consist of long chain s of unbranched or branched monomers or may be cross-linked networks of monomers in two or three dimensions.

聚合物可能包含由无支链的或有支链的单体组成的长链，也可能是单体连接的耳维或三维网状结构。

Black humorists often attack the absurdity they see in life itself, as well as society's ills.

黑色幽默家们常常诟病他们在生活中所看到的生活的荒谬，以及社会的弊病。