pontoon
noun uk/pɒnˈtuːn/ us/pɑːnˈtuːn/
(BRIDGE)
[ C ]（尤指用于支撑浮桥的）趸船，浮筒
a small, flat boat or a metal structure of a similar shape used especially to form or support a temporary floating bridge
Military engineers hurriedly constructed a pontoon bridge across the river. 工程兵在河上匆匆地架设浮桥。
(GAME)
[ U ] UK二十一点纸牌赌戏
→ blackjack