existing, occurring, or done under the earth's surface 存在于地面下的;地底下发生的;在地下进行的 ■secret; concealed 秘密的;隐藏的 the subterranean world of the behind-the-scenes television power brokers. 幕后电视权力经纪人的隐秘世界。
派生 subterraneously adverb 语源
early 17th cent.: from Latin subterraneus (from sub- 'below' + terra 'earth') + -an