(Anatomy & Zoology)(剖,动)a pliable sheet-like structure acting as a boundary, lining, or partition in an organism 膜 ■a thin pliable sheet or skin of various kinds 薄膜;膜状物 the concrete should include a membrane to prevent rising damp. 混凝土应该有一层薄膜防止潮气上升。 ■(Biology)a microscopic double layer of lipids and proteins which bounds cells and organelles and forms structures within cells (生)膜