常见例句Atolls and coral reefs from the stony coral skeleton form.环状珊瑚岛和珊瑚礁由石珊瑚的骨骼形成。When talking about corals, people normally refer to stony corals that build fascinating reefs.每当提及珊瑚，我们便会联想到那些能建造珊瑚礁的石珊瑚。 返回 stony coral