| 单词 | semipermeable membrane |
| 释义 | semipermeable membrane (once / 5909656 pages) n WORD FAMILY semipermeable membrane USAGE EXAMPLESThere was no lightbulb-over-my-head moment; just the constant drip-drip percolation of facts and feelings through the semipermeable membrane of my mind. New York Times(May 12, 2011) n a membrane (as a cell membrane) that allows some molecules to pass through but not others Hypo|Hyper cell membrane, cytomembrane, plasma membrane 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 membrane, tissue layer a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants |
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