| 单词 | 地下通道 |
| 释义 | 〔arroyo〕from Vulgar Latin *arrugiu [gold mine, underground passage] 源自 俗拉丁语 *arrugiu [金矿，地下通道] 〔gallery〕A passage made by a tunneling insect or animal.地下通道：昆虫或动物挖的通道〔subway〕An underground tunnel or passage, as for a water main or for pedestrians.地下通道：建在地下的隧道或通道，如供水管或行人用〔sinkhole〕A natural depression in a land surface communicating with a subterranean passage, generally occurring in limestone regions and formed by solution or by collapse of a cavern roof.灰岩坑：与某一地下通道相联的陆地表面的自然下沉地区，通常出现在灰岩地区并且由石灰岩溶解成溶洞顶部下沉形成 |
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