名词
中文翻译：细胞壁侧壁
同义词：
['cell wall', 'cell membrane']
例句：
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1.The cell wall is the outer layer of a plant cell that protects it from damage.
细胞壁是植物细胞的外层，起到保护作用。
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2. The cell membrane separates the interior of the cell from the external environment.
细胞膜将细胞内部与外部环境分隔开。
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3. The cell wall is made up of two layers: the inner cellulose layer and the outer pectin layer.
细胞壁由两层组成：内层纤维素和外层果胶。