n.[C][U]

1. 【解】膜
   the mucous membrane

   粘膜

2. 薄膜，膜状物

n.

1. Anatomy  & Zoology  a pliable sheet-like structure acting as a boundary, lining, or partition in an organism.
2. a thin pliable sheet of material forming a barrier or lining.
3. Biology  a double layer of lipids and proteins forming the boundary of a cell or organelle.