每日背诵第三期28
Yet, Antarctica's fragile and complicated eco-system is threatened by its human visitors. Damage to the environment occurs as people come looking for resources beneath the ice, or carelessly leave their garbage behind. Currently, countries are working to ensure that the damage to Antarctica's environment is minimized, and that the last wilderness on Earth will remain an unspoiled place.
不过，南极洲脆弱而复杂的生态系统正受到由人类组成的游客的威胁。人们来这儿寻找冰层下的自然资源，或不经意的留下垃圾，都会对环境造成污染。目前，各国正努力使对南极洲环境的破坏降到最低，以确保地球上的最后一片荒野能永远是一块未受破坏的地方。
(短文节选,本篇始于：南极大陆)
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