形容词
中文翻译：Unknown
同义词：
['remaining', 'residual', 'vestigial']
例句：
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1.The vestigial tail of the dinosaur was a clue to its evolutionary history.
恐龙那残留的尾巴是其进化历史的线索。
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2. The vestigial organ is still used in some species for communication.
这个残留器官在某些物种中仍然用于交流。
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3.The vestigial wings of the butterfly are used for flight.
蝴蝶的残留翅膀用于飞行。