参考词典中plasma membrane的常规释义：
基本释义
英英解释
- a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell
[同]
cytomembrane, cell membrane, plasma membrane
[例]
- all cells have a cell membrane
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