| 单词 | preform | 
| 释义 | preform1 of 2verb  pre·form  ˈprē-ˌfȯrm   (ˌ)prē-ˈfȯrm     preformed; preforming; preforms    transitive verb 1    : to form or shape beforehand   2    : to bring to approximate preliminary shape and size   preform 2 of 2noun  pre·form  ˈprē-ˌfȯrm      plural preforms      : any of various objects of manufacture or handicraft after preliminary shaping: such as    a     : a rough gemstone that has been cut to approximately its finished size and shape    b     : a tube produced for the purpose of being molded into a particular form (such as a bottle)    | 
	
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