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关注：1
2013-05-23 12:21
求翻译：precisely how and why feathers first arose and when the first birdlike creature realized they were useful for flight.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
precisely how and why feathers first arose and when the first birdlike creature realized they were useful for flight.
问题补充： |
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2013-05-23 12:21:38
如何准确，为什么羽毛首次出现时，第一个似鸟的生物实现他们飞行有用。
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2013-05-23 12:23:18
precisely how and why feathers arose first and when the first realized they were birdlike creature useful for flight.
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2013-05-23 12:24:58
precisely how and why feathers first arose and when the first birdlike creature realized they were useful for flight.
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2013-05-23 12:26:38
precisely how and why feathers first arose and when the first birdlike creature realized they were useful for flight.
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2013-05-23 12:28:18
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