lipopeptid

例句：

1. 1. Lipids are essentialcomponents of cell membranes and play acrucial role in energy storage.
   脂类是细胞膜的重要组成部分，对能量储存起着至关重要的作用。
2. 2. The study found that high levels ofLDL cholesterol were associated with an increasedrisk of heart disease.
   研究发现，高水平的低密度脂蛋白胆固醇与心脏病风险增加有关。
3. 3.Lipids also have important functions inthe body's immune system, suchas transporting nutrients and hormones.
   脂类在身体免疫系统中也具有重要作用，如运输营养物质和激素。