—— 每十个旅行者中有六个（58%）表示，他们相信旅游服务供应商的环保计划将对环境产生积极的影响。
Six out of 10 (58 percent) travelers say they believe that environmental programs by travel service suppliers could have a positive effect on the environment.
他们的目标看来仅仅聚焦于以最低的成本在各旅游景点之间修筑最短的、可能的道路，而很少或没有顾及环境影响。
Their objective appears to focus only on building the shortest possible route between locations of interest at the lowest cost with little or no regard for environmental consequences.
拉默斯先生说，南极旅游业的利润必须与环境影响保持平衡。
Mr Lamers said the benefits of Antarctic tourism had to be balanced with the environmental impacts.
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