膜

例句：

1. 1. The scientist used a microscope to examine the cell membrane.
   科学家使用显微镜来检查细胞膜。
2. 2. The new car has a sleek and stylish exterior with a thin film of plastic as its main body.
   新款汽车拥有光滑而时尚的外观，主体部分由一层薄薄的塑料薄膜构成。
3. 3. The scientists discovered that the virus could penetrate through the outer layer of the cell membrane.
   科学家们发现病毒可以通过细胞膜的外层渗透进去。