subterranean

美音音标: [.sʌbtə'reɪniən] subterranean
英音音标: [.sʌbtə'reɪniən] result.0.expl|add:"

同义
subterranean subterraneous
词性
s
解释
being or operating under the surface of the earth
示例
subterranean passages|a subsurface flow of water

同义
subterranean subterraneous ulterior
词性
s
解释
lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed)
示例
subterranean motives for murder|looked too closely for an ulterior purpose in all knowledge