名词
中文翻译：单细胞动物
同义词：
['single-celled animals', 'unicellular organisms']
例句：
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1. Many marine animalsare unicellular, meaning they have only one type of cell.
许多海洋动物是单细胞的，意味着它们只有一种类型的细胞。
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2. In the deep sea, there are many unicellular animals that can survive in extreme conditions.
在深海中，有许多单细胞动物可以在极端条件下生存。
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3. The study of unicellular animals is important for understanding the evolution of life on Earth.
研究单细胞动物对于理解地球上生命演化的重要性。