feldspar

(also felspar / 5felspB:(r); `fZl9spBr/) n [U] white or red mineral rock that contains aluminium and other silicates 长石.

feeder, feeding-bottle, feel, feel about, feel amused at, feel bitter at, feel envy at, feel guilty about, feel like, feel one's way, feel out, feel up to, feeler, feeler gauge, feeling, feet, feign, feigned, feint, feisty, felicitate, felicitation, felicitous, felicitously, felicity, feline, fell, fellatio, fellow, fellow scientist, fellow-actor, fellow-citizen, fellow-feeling, fellow-guest, fellow-traveller, fellowship, felon, felonious, felony, felspar,