想象一个不再有动物的世界：没有大象、老虎或狮子。
Imagine a world with no more animals: no elephants, no tigers or lions.
根据世界野生动物基金会的一份报告，到1970年，全世界仅存约4500只老虎——其中一半在印度。
By 1970, according to a World Wildlife Fund report, only about 4,500 tigers survived throughout the world—half of them in India.
根据世界野生动物基金会的一份报告，到1970年，全世界仅存约4500只老虎——其中一半在印度。
By 1970, according to a World Wildlife Fund report, only about 4,500 tigers survived throughout the world-half of them in India.
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