Fat provides about half of the energy source (calories) in human breast milk, mostly as long-chain fatty acid triglycerides (LCT).

脂肪提供了母奶中约一半的热量来源，其中大部分是长链的脂肪酸三酸甘油脂。

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Embedded in the membrane of each mitochondrion is a structure called the electron transport chain, which produces adenosine triphosphate (ATP), a molecule that is the source of the cell's energy.

每个线粒体隔膜上镶嵌着一种称为“电子传递链”的结构，它能够产生三磷酸腺苷(atp)，这个分子是细胞的能量之源。

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Tomorrow (or, at least in the not-too-distant future), the small Central American nation intends to tap the chain of volcanoes it sits above as a source of geothermal energy.

FORBES: Scaling Geothermal in Central America