sea海 highseas,opensea远海 ocean大洋 inlet小湾 bay海湾,湾 gulf海湾 cove湾 cape海角 promontory,headland海角,岬 cliff悬崖峭壁 port,harbour港(美作:harbor) bay,roadstead碇泊处 sandbank沙滩 beach,shore海滩 strait海峡 isthmus地峡 reef礁石 key暗礁 sandbar沙洲 tide潮 wave浪 undertow回头浪 tempest风暴 groundswell涌浪 seaquake海震,海啸 thermocouple pyrometer 热电偶高温计 lowwater最低水位 territorialwaters领海,领水 icefloe冰川 iceberg冰山 shore海岸 bank河岸 estuary湖港区 delta三角洲 mouth,ria河口 flord峡湾 current,watercourse水流 stream,brook小溪 torrent湍流山溪 rapids急流 source源头 spring泉 bed河床 flood洪水 flow泛滥 swelling,freshet河水猛涨,涨水 basin流域 waterfall,falls,cascade瀑布 cataract大瀑布 tributary支流 confluent汇合点 meander河曲 canal运河 wadi,wady干谷