cramp

n.痉挛

cracker, crackers, cracking, crackle, crackle-ware, crackling, crackpot, cracksman, cradle, craft, craftily, craftiness, craftsman, craftsmanship, crafty, crag, craggy, cram, cram-full, crammer, cramped, crampon, cranberry, crane, crane-fly, cranial, cranium, crank, crankshaft, cranky, crannied, cranny, crap, crape, crappy, craps, crapulence, crapulent, crash, crash barrier,