There are two classes, two broad classes of drug sort of type ligands that are defined, agonists and antagonists.

这样的配体药物有两类,目前已经明确的配体药物大体上分为两种,分别是激动剂和拮抗剂

耶鲁公开课 - 生物医学工程探索课程节选

But in Genesis, Creation is not the result of a struggle between divine antagonists.

但是在《创世纪》中，创造并不是与其他神力斗争的结果。

耶鲁公开课 - 旧约导论课程节选

Then, there are antagonists that slow down the amount of neurotransmitters, either because they destroy neurotransmitters or they make it hard to create more.

另一种是抑制剂,抑制剂会抑制神经递质的释放量,有可能是通过破坏神经递质而实现,也可能是通过抑制神经递质的生成而实现

耶鲁公开课 - 心理学导论课程节选