你见过喀斯特洞穴吗? 你見過喀斯特洞穴嗎? 你見過喀斯特洞穴嗎?

Have you ever seen a karst cave?

Simplified
你见过喀斯特洞穴吗?
Traditional (Taiwan)
你見過喀斯特洞穴嗎?
Pinyin
Nǐ jiànguo kāsītè dòngxué ma?
Bopomofo
ㄋㄧˇ ㄐㄧㄢˋ ˙ㄍㄨㄛ ㄎㄚ ㄙ ㄊㄜˋ ㄉㄨㄥˋ ㄒㄩㄝˊ ˙ㄇㄚ?

Written with HSK 7-9 vocabulary, at CEFR level C1.

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