Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/df55184b794221c6a9f03b4e323f3ca6.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 large cavern group例句_large cavern group英汉例句_large cavern group双解例句_按摩法牛津词典
An ancient man-made near ground surface rock cavern group was found in Longyou County, Zhejiang Province. The 24 large caverns were excavated 2000 years ago. 浙江省西部龙游县的龙游大型古地下洞室群由24 个洞室组成，该洞室群开挖于2000 年前。