关键词
ecotourism / / n. 生态旅行
We should protect our natural environment and support ecotourism.
我们应该保护自然环境，支持生态旅游。
pristine / / adj. 原始的
The forests on the Alps are still in pristine region, unspoiled by industrialization.
阿尔卑斯山的森林仍是原始林区，未遭工业破坏。
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。
