sink·hole
noun/ˈsɪŋkhəʊl/
/ˈsɪŋkhəʊl/
(also less frequent swallow hole)
(geology)- 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）
| 单词 | sinkhole |
| 释义 | sink·holenoun/ˈsɪŋkhəʊl/ /ˈsɪŋkhəʊl/ (also less frequent swallow hole) (geology)
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