fossilize, fossilise

v [I, Tn usu passive 通常用於被动语态] 1 (cause sth to) become a fossil （使某物）成为化石: fossilized leaves 成为化石的叶子. 2 (fig 比喻) make (sth) or become out of date or fixed 使（某事物）（变得）过时或固定不变: old-fashioned fossilized attitudes 落後的、 固定不变的看法.

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