fossilize

vt. 使成化石,使陈腐 vi. 变成化石,变陈腐,固定化

fortuity, fortunate, fortunately, fortune, fortune cookie, fortune-hunter, fortune-teller, forty, forty-five (also 45), forum, forward, forward-looking, forwarding address, forwarding agent, forwardness, forwent, fossil, fossil fuel, fossil man, fossilization, fossilisation, fossilize, fossilise, foster, foster-, fought, foul, foul play, foul-mouthed, foul-up, foully, foulness, found, foundation, foundation course, foundation-stone, foundations, founder, founder-member, founding father, foundling, foundry,