单词	淡言
释义	同FLAT
随便看	round head bolt round-head bolt round-head buttress dam round head cap screw roundheaded roundheaded apple tree borer round-headed borer round-headed mullet round headed nail round-headed nail roundheadedness round head grooved bolt round head grooved pin round head parrot fish round head rivet round-head rivet round head rivet--button head rivet-- snap head rivet roundheads round head screw round-head screw round-head short square-neck bolt roundheads--plesiopidae round-head square-neck bolt round head wood screw round heart disease