a long structure sticking out from the land over the sea, where people can walk or large boats can be tied, sometimes with restaurants and places of entertainment on it
凸式码头，突堤码头
a low structure built at the edge of water, used especially for getting into and out of boats
(COLUMN)
architecturespecialized桥墩;支柱
a strong thick column used to support a wall, roof, or other structure