stammer

v.口吃

stairs, stairway, stairwell, stake, stake-out, stalactite, stalagmite, stale, stalemate, staleness, stalk, stalker, stall, stall-holder, stallion, stalwart, stalwartly, stalwartness, stamen, stamina, stammerer, stammeringly, stamp, stamp album, stamp-collecting, stamp-collector, stamp-duty, stampede, stamping-ground, stamps, stance, stanch, stanchion, stand, stand (sb) to, stand a chance, stand a good chance, stand back (from sth), stand by, stand down,