phosphatidylethanolamine

例句：

1. 1.This compound is a key component of cell membranes.
   这种化合物是细胞膜的关键成分。
2. 2.The researchers discovered that this lipid could help regulate gene expression.
   研究人员发现，这种脂质可以帮助调节基因表达。
3. 3. Phosphatidylethanolamine is often used as an emulsifier in food and cosmetics.
   磷脂酰乙醇胺常用于食品和化妆品中作为乳化剂。