名词
中文翻译：细胞膜
同义词：
['cell membrane', 'plasma membrane', 'endoplasmic reticulum']
例句：
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1.The cell membrane is the outer layer of a cell that separates it from the outside environment.
细胞膜是细胞的外层，将细胞与外部环境分隔开。
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2.The plasma membrane is responsible for transporting nutrients and ions across the cell membrane.
质膜负责在细胞膜上运输营养物质和离子。
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3. The endoplasmic reticulum is a network of membrane-bound organelles that play a crucial role in protein synthesis.
内质网是一种由膜包围的器官，它在蛋白质合成中起着至关重要的作用。