subterranean

adj.

地表下面的，地下的；隐藏的；暗中的；

n.

地下室；生活在地下的人；地下生存的动物（东西）；

subterranean water地下水

1. The subterranean passage led to a cave.
   地下的通道通向一个山洞。
2. A subterranean stream is flowing through this area.
   有一条地下河流经这个区域。
3. It is impossible to pack so many refugees into the subterranean dwelling.
   这地下住所挤不下那么多的难民。
4. All night he heard the subterranean workman, who continued to mine his way.
   他整夜都听着那个隐蔽的工作者，那个人在继续他的挖掘工程。

The subterranean estuary: a reaction zone of ground water and sea water
biology of caves and other subterranean habitats
Life Underground: the Biology of Subterranean Rodents
Control of particulate flowback in subterranean wells
The role of pocket gophers as subterranean ecosystem engineers
A specific breeding problem of sheep on subterranean clover pastures in Western Australia
A comparative genetic analysis of the subterranean termite genus Reticulitermes (Isoptera: Rhinotermitidae).
Subterranean Ecosystems: A Truncated Functional BiodiversityThis article emphasizes the truncated nature of subterranean biodiversit...
West Nile virus from female and male mosquitoes (Diptera: Culicidae) in subterranean, ground, and canopy habitats in Connecticut.
Reproductive dynamics and colony structure of subterranean termites of the genus Reticulitermes (Isoptera Rhinotermitidae): a review...