foetus (US fetus)

n young human, animal, bird, etc that has developed within the womb or egg but has not yet been born or hatched 胎儿; 胚胎. Cf 参看 embryo 1.

flyover, flysheet, flyweight, flywheel, FM, FO, foal, foam, foamy, fob, focal, focal length (also focal distance), focal point, focsle, focus, focus on, focus...on, fodder, foe, foetal (US fetal), fog, fog-bank, fog-bound, fog-horn, fog-lamp, foggy, fogy (also fogey), foible, foil, foist, fold, foldaway, folder, folding, foliage, folio, folk, folk-dance, folk-music (also folk), folk-song, folk-tale,