An atoll is a circular reef surrounding a lagoon.
环礁是环绕着一个泻湖的环形礁石。
The boat was dashed against the rocks.
那船猛地撞到礁石上。
The boat was smashed on the rocks.
船在礁石上撞碎了。
The stormy wind blew the ship on to the rocks.
暴风把船吹上礁石。
The tides surged over the rocks.
潮水奔腾着涌过礁石。
Be careful! Don't run the ship on the rocks.
小心！别把船撞在礁石上。
The wave is splashing over the reef.
海浪飞溅着越过礁石。
Dangerous rocks shut up the passage.
危险的礁石堵住了航道。
Kept a clear berth of the reefs.
与礁石保持安全距离
a line of darker water Beyond the reef.
礁石外深色水域分界线
ledge rock
礁石, 坚石岩, 含矿[突出]岩石
Just exactly how does the reef come by all this coral?
这些珊瑚究竟是如何形成礁石的呢？
the ceaseless thunder of the surf against the rocks;
海浪不断拍打礁石的隆隆声；
It was not unusual to find turtles feeding near the edge of the reef.
海龟在礁石边寻找食物是常见的事情。
Navigation is difficult on this river because of the submerged rocks.
由于水下的礁石，这条河很难航行。
found around rocky coasts or on reefs.
生活在多岩的海岸或礁石周围。
Just how exactly did Hagrid get to the Hut On The Rock?
海格究竟是怎样到达礁石上的小屋的？
The boat gave a lurch sideways towards the rocks.
小船突然向礁石一边倾侧。