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| 1. | These outstanding examples of cone karst owe their existence and uniqueness to several interacting geological |
| 这些极具特色的圆锥形喀斯特山峦，是由亿万年来地质、物或风化侵蚀作用与气候变化等诸多因素之间复杂的相互影响而形成的。 |
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| 2. | Most such alternatives owe their existence to society's tremendous progress toward cheap, fast and efficient |
| 这类新方法的出现，主要并不是因为人道考量，而是因为社会科技有了长足的进步，出现了更便宜、快速且更有效率的技术。 |
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| 3. | The lakes owe their very existence to a kind of biological magic that turns water into stone. |
| 在节目中，大家不但可以看到欧洲最罕有的池塘乌龟和小龙虾，还能真眼目睹一头棕熊如何枪夺一群野狼的猎物。 |
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