详细解释:n. 圆形机车库, 拘留所, 大抡拳
英语解释：
名词 roundhouse:
workplace consisting of a circular building for repairing locomotivesa hook delivered with an exaggerated swing详细解释：
round.house
n.（名词）A circular building for housing and switching locomotives.圆形机车库：供机车停放和换辙用的圆形建筑Nautical A cabin on the after part of the quarterdeck of a ship.【航海】 艉楼甲板室：后甲板后部的舱室Games A meld of four kings and four queens in pinochle.【游戏】 大团圆：有4个国王和4个王后的皮纳克尔牌戏中的双倍组合牌Slang A punch or swing delivered with a sweeping sidearm movement.【俚语】 大挥拳，大抡拳：拳击中弯肘使劲的一击