They're derived from a precursor called triacylglyceride, which is as glycerol molecule with three fatty acid chains dangling off of it.

它们来源于一种叫三酰甘油的前体,由甘油分子上连接了,三个脂肪酸链构成

耶鲁公开课 - 生物医学工程探索课程节选

The logic behind this is derived from a theory called Ricardian equivalence, which holds that government spending cannot boost demand, since consumers cut their own expenditure in anticipation of higher taxes ahead.

ECONOMIST: Tightening economic policy

That conflicts not only with the limbic-system theory but also with earlier reports of a so-called God Spot that derived partly from work conducted on epileptics.

ECONOMIST: The science of religion

In 2004 biotech firm Amgen began trials of a Parkinson's drug called glial cell line-derived neurotrophic factor, or GDNF.

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