swallow-hole
swallow-hole是什么意思、swallow-hole怎么读
n. 石灰坑
swallow-hole汉语翻译
n. 石灰坑
swallow-hole英语解释
名词 swallow-hole:
- a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof同义词：sinkhole, sink, swallow hole