adj.地下的；隐蔽的
The subterranean passage led to a cave. 地下的通道通向一个山洞。
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。
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。
