Instead of one large lipid droplet in a white fat cell, the brown fat cell is one tightly packed bag of mitochondria.

棕色脂肪细胞不是白色脂肪细胞中的一个大脂滴，而是一个紧密包裹着线粒体的袋子。

This process releases lipid droplets which are broken down into compounds that float through the bloodstream and provide energy to organs and tissues.

这个过程释放脂滴，脂滴被分解成漂浮在血流中的化合物，为器官和组织提供能量。