柯林斯词典lagoon /ləˈɡuːn/ (lagoons) 1. N-COUNT A lagoon is an area of calm sea water that is separated from the ocean by a line of rock or sand. 环礁湖 返回 lagoon剑桥词典an area of sea water separated from the sea by a reef (= a line of rocks and sand ) 泻湖，濒海湖，环礁湖 a tropical lagoon 热带环礁湖 返回 lagoon