sinkhole（落水洞）是什么意思？音标发音+图解场景

落水洞 /ˈsaɪd ˈmɪɹə/ n

English: sinkhole · 落水洞

释义：Basin formed by continuous water infiltration into calcareous rock, causing the dissolution of the rock.

这个词出现在以下图解场景（1）