folly

n.愚蠢

folio, folk, folk-dance, folk-music (also folk), folk-song, folk-tale, folklore, folklorist, folks, folksy, foll, follow, follow (in) sb's footsteps, follow out, follow through, follow up, follow-on, follow-through, follow-up, follower, following, foment, fomentation, fond, fondant, fondle, fondly, fondness, fondue, font, food, food processor, food value, food-chain, foodstuff, fool, fool around, fool with, foolery, foolhardiness, foolhardy,