flute

n.长笛 v.刻出凹槽

fluke, fluky (also flukey), flummox, flung, flunk, flunkey (also flunky), fluoresce, fluorescence, fluorescent, fluorescent lamp, fluoridate, fluoridation, fluoride, fluoridization, fluoridisation, fluoridize, fluridise, fluorine, flurry, flush, flushed, fluster, flutist, flutter, fluvial, flux, fly, fly into a temper, fly-away, fly-blown, fly-by, fly-by-night, fly-fish, fly-fishing, fly-half, fly-paper, fly-past, fly-spray, flycatcher, flyer, flying, flying buttress,