名词
中文翻译：海胆
同义词：
['seaurchin', 'hydrozoan', 'seasnail']
例句：
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1.The barnacles on the ship's hull were causing it toslow down.
船体上的海胆导致它减速。
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2. The scientist collected samples of barnacles from different parts of the ocean.
科学家从海洋的不同地方收集了海胆的样本。
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3. Barnacles are knownfor their ability to attach themselves to surfacesand form protective shells.
海胆以其能够附着在表面并形成保护壳的能力而闻名。