详细解释:n. (三人划的)小艇, 狂欢
详细解释：
ran.dan
n.Nautical （名词）【航海】 A boat designed to be rowed by three persons.三人划艇：一种设计由三人划动的船The method of rowing such a boat, in which the persons fore and aft use one oar each and the person amidships uses two.三人划艇法：划动这种船的方法，前后两人各执一个桨，中间一人执双桨
来源：[Origin unknown] [词源不明]