The karstic collapse column is the old bedrock subside which the stiff non-dissolubility rock caved in subjacent karst cave.是什么意思_The karstic collapse column is the old bedrock subside which the stiff non-dissolubility rock caved in subjacent karst cave.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句