总的说来，Quay, pier, jetty 都表示具体的码头，真正有那么一个河岸，桥墩，突出物可以让船靠泊的地方；berth，dock, terminal 与前三项相比就比较抽象，berth指的是能容船靠泊的空间; dock指两码头之间可停船的空间，但更多指船坞；terminal, 则表示终点站，终到港.具体意义及用法如下：quayn. 码头,突堤,岸壁 A wharf or reinforced bank where ships are loaded or unloaded.码头或经过加固的河岸，在此可往船上装货或卸货The quay looked like a long stone road going into the sea. 这个码头看起来像一条通入海里的长长的石头路。berthSufficient space for a ship to maneuver; sea room:操船空间，安全距离为船只回旋留出的足够空间；海洋空间：kept a clear berth of the reefs.与礁石保持安全距离dock船坞, 修船所; [常用复](附设在码头 、仓库等的)造船厂, [美口]码头; 停泊处The area of water between two piers or alongside a pier that receives a ship for loading, unloading, or repairs.船坞两个码头之间的或沿码头的水域用来容船装卸或修理等terminaln（火车、公共汽车等的）终点站，总站 航空集散站shipping terminal航运基地; 码头仓库piern.(桥)墩；码头A platform extending from a shore over water and supported by piles or pillars, used to secure, protect, and provide access to ships or boats.桥墩，墩从河岸延伸至水面以上的平台，由桩或柱子支撑，用来给船或艇保证安全、保护和提供通道floating pier浮码头freight station pier货运站码头jettyA structure, such as a pier, that projects into a body of water to influence the current or tide or to protect a harbor or shoreline from storms or erosion.防波堤一种突入水体用来影响水流或潮水或使港口、海岸免受暴雨和侵蚀的建筑结构（如突堤）entrance jetty进港导堤floating jetty浮码头oil jetty石油码头repair jetty修船码头tanker jetty油船码头
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