n.玄武岩,黑陶器(似玄武岩的制品)
Her love was a fire playing ineffectually over a rock of basalt.
她的爱,如同一团火,徒劳地烧炼着一块玄武岩石.
Basalt is the commonest volcanic rock.
玄武岩是最普通的火山岩.
Basalt is needed to surface a road or to build a break water.
需要用玄武岩来铺设路面或修防洪堤.