leptactinine

例句：

1. 1. The cell membrane is composed mainly of leptactinine.
   细胞膜主要由类脂质组成。
2. 2. Leptactinine plays a crucial role in cell signaling.
   类脂质在细胞信号传导中起着重要作用。
3. 3.The study of leptactinine has led to new insights into the function of lipids in biology.
   对类脂质的研究为理解脂质在生物学中的功能提供了新的见解。