reef line

例句：

1. 1. The diver followed the reef line to find a new route.
   潜水员沿着礁线寻找新的路线。
2. 2. The coral reef is home to many species of fish and marine life.
   珊瑚礁是许多鱼类和海洋生物的家园。
3. 3. The reef line was so clear that it looked like glass.
   礁线如此清晰，看起来像玻璃。