span / / v. 横跨，跨越

　　The government spent two years building a red bridge spanning the gorge.

　　政府花了两年的时间建造一座横跨那座峡谷的红桥。

　　elevation / / n. 海拔

　　The lake on the mountain at an elevation of about 350 meters is our first stop.

　　山里那座海拔三百五十公尺左右的湖泊是我们的第一站。

　　leach / / v. 过滤

　　Nitrogen is easily leached from soil because it is more easily dissolved.

　　氮因为较容易溶解，所以很容易就可以从土壤中过滤出来。

　　toxic / / adj. 有毒的

　　People in Nazi concentration camps were slaughtered using toxic gas.

　　纳粹集中营里的人们惨遭毒气杀害。

　　prominent / / adj. 著名的，重要的

　　Lili played a prominent part in the case.

　　莉莉在这件案子里扮演举足轻重的角色。

　　magnate / / n.（实业界）巨头，巨子

　　The press magnate decided on a merger with another company to expand his empire.

　　那位报巨子决定与另一家公司合并，以扩展他的企业王国。