More precisely, they block the action of a form of glutamate receptor known as the NMDA receptor, which plays a critical role in brain development, learning, memory and neural processing in general.

• 说得更精确些，这些药物阻断了一种叫做NMDA型的麸胺酸受体，该受体对于大脑的发育、习、忆以及一般的神经活动都扮演著举足轻重的角色。