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词汇 preformed
词源

preformed adj.

"formed in advance of use or further preparation," c. 1600, from Latin praeformare or else from pre- + formed (see form (v.)). Of plastic and synthetic products, from 1918. A verb preform "form beforehand" seems to be late and rare in English. Related: Preformation (1732).

updated on October 17, 2020

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