| 单词 | sinkhole |
| 释义 | sink·holeBrE /ˈsɪŋkhəʊl/ NAmE /ˈsɪŋkhoʊl/ (also ˈswallow hole ) noun (geology地质学) a large hole in the ground that a river flows into , created over a long period of time by water that has fallen as rain 落水洞（在地下，雨水长期渗落形成） |
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