名词
中文翻译：水螅
同义词：
['hydra', 'hydroid']
例句：
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1.Hydroids are fascinating creatures that live in water.
水螅是令人着迷的生物，它们生活在水里。
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2. The hydranths of the sea anemone are incredibly complex and beautiful.
海葵的水螅非常复杂且美丽。
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3. In nature, hydranths are often found in aquatic ecosystems.
在自然界中，水螅通常存在于水生生态系统中。