roller
名词 roller:
a grounder that rolls along the infield
a long heavy sea wave as it advances towards the shore
同义词:roll, rolling wave
a small wheel without spokes (as on a roller skate)
a cylinder that revolves
a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
同义词:curler, hair curler, crimper
Old World bird that tumbles or rolls in flight; related to kingfishers
pigeon that executes backward somersaults in flight or on the ground
同义词:tumbler, tumbler pigeon