名词
中文翻译：水螅
同义词：
['hydroid', 'hydroid stage']
例句：
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1.The hydramnion is a fascinating creature that lives in the ocean.
水螅是一种令人着迷的海洋生物。
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2. During the hydramnion stage, the hydramnion undergoes significant changes in its physical structure.
在水螅阶段，水螅的物理结构会发生显著变化。
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3.The discovery of new species of hydramnion has sparked interest in their unique adaptations to their environment.
发现新的水螅物种引起了对它们独特适应环境的兴趣。