blue hole
originally Jamaican
noun
A deep pool in which the water often appears blue; (in later use) specifically a deep water-filled cylindrical hollow or cave in limestone, typically in a coastal area of the tropics.
Origin
Mid 19th century.
| 单词 | blue hole |
| 释义 | blue holeoriginally Jamaican noun A deep pool in which the water often appears blue; (in later use) specifically a deep water-filled cylindrical hollow or cave in limestone, typically in a coastal area of the tropics. Origin |
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