英
[s'wɒləʊh'əʊl]
美
[s'wɒləʊh'əʊl]
new
swallow-hole的英文翻譯是什麼意思,詞典釋義與在線翻譯:
英英釋義
名詞 swallow hole:
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a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
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