coral/'kɒrəl $ 'kɔːr-/

n. a hard substance formed from the bones of very small animals

n. [U] 珊瑚：Coral can be red, pink, white, etc. 珊瑚有红色、粉红色和白色等各种颜色。

◇a coral island 珊瑚岛

◇a coral necklace 珊瑚项链

音组-oral/-'ɒrəl $ -'ɔːrəl/

coral; moral