a rigid layer of polysaccharides enclosing the membrane of plant and prokaryotic cells; maintains the shape of the cell and serves as a protective barrier
cell wall例句
The prisoner rapped out a message on the cell wall.
那囚犯敲打囚室的墙来传达讯息。
The growth of successive layers of a cell wall.
敷着,附着细胞壁连续层的生长
The living material of a plant or bacterial cell, including the protoplasm and plasma membrane after the cell wall has been removed.