These long, convoluted molecular chains—each assembled from a menu of 20 types of chemical links called amino acids—are the worker ants of biology.

这些长而复杂的分子链——每条分子链都由 20 种称为氨基酸的化学链组合而成——是生物学中的工蚁。

The reason Ketamine is so effective could be that it goes directly to a brain chemical linked to depression. He says traditional antidepressants target that chemical only indirectly.

氯胺酮如此有效的原因可能是它直接作用于与抑郁症相关的大脑化学物质。他说传统的抗抑郁药只是间接地针对这种化学物质。

Yeast turns the sugars in apple juice into alcohol, and bacteria then turns that alcohol into acetic acid, the chemical linked to most of cider vinegar's alleged benefits.

酵母将苹果汁中的糖分转化为酒精，细菌再将酒精转化为乙酸，乙酸是一种与苹果醋的大部分所谓益处有关的化学物质。