以下为句子列表：
英文: 1If the forest continues to disappear at its present pace, the koala will approach extinction.said the biologist.
中文: “如果森林按照现在这种速度消失，考拉将会灭绝。”生物学家说。
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英文: 38 animals are facing extinction in this state since 1971.
中文: 作为动物的一个物种，处于被消灭或消亡的状态。
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英文: A species that is on the brink of extinction.
中文: 处在灭绝边缘的物种。
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英文: A trumpeter swan glides across the surface of the Yellowstone River. Trumpeter swans once faced extinction; today their numbers are rebounding.
中文: 一只号声天鹅滑过黄石河河面。号声天鹅一度濒临灭绝，不过现在，它们的数量正有所上升。
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英文: A warmer climate could lead to rising sea levels, the spread of tropical diseases in previously temperate climes, crop failures in some regions and the extinction of many plant and animal species, especially those in polar or alpine areas.
中文: 变暖的气温使海平面上升、热带疾病在温带传播、一些区域的农作物歉收以及许多动植物物种绝灭，特别是两极与高山地区的生物。
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