swallow hole

英 [ˈswɒləʊ həʊl] 美 [ˈswɑːloʊ hoʊl]

网络  燕子洞; 吞口; 落水洞

英英释义

noun

  1. a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof

      Synonym:    sinkholesink

    点击展开全文

    考试分类

    行业分类

    柯林斯词典词频分级词汇

    其他分类