单词：pontoons
音标：[pɔnˈtu:nz] ；
n. 平底船( pontoon的复数形式 ); （架设浮桥用的）浮舟; 二十一点牌戏
n. (nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge
n. a float supporting a seaplane
n. a float supporting a seaplane