名词
中文翻译：水母
同义词：
['jellyfish', 'jellyfish', 'hydrozoa']
例句：
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1. The merl was swimming gracefully in the ocean.
水母在水中优雅地游动。
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2. She was fascinated by the merl's ability to change color.
她对水母变色的能力感到着迷。
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3. The merl is a fascinating creature that can live for up to a year without food.
水母是一种令人着迷的生物，可以一年不吃东西生存。