trunc-
【記】trunc=trunk ( n.樹幹 ) ,ate 吃 ---> 吃掉樹幹的頂端 ---> 截短
truncate v.把 ( 某物 ) 截短【類】truncate:extent=simplify:complexity『minimize:component』截短長度=簡化複雜性『最小化成分』【反】prolong ( v.延長;拖延 )