serviceable

a. 有用的,耐用的

serpent, serpentine, serrate, serrated, serration, serried, serum, servant, serve, serve as, serve one's turn, serve right, server, service, service area, service break, service charge, service flat, service road, service station, serviceably, serviceman, services, servicewoman, serviette, servile, servilely, servility, serving, servitude, servo, servo-, servo-mechanism, servo-motor, servo-system, sesame, session, set, set a goal, set about,