although these drugs are not new,尽管这些药品不是最新药品，discoveries relating to brain chemistry 但是有关人类大脑化学药品的发明，and the resulting development of new drugs 以及新药品的快速发展，have greatly expanded the use of psychiatric drugs 已经很大程度上扩大了精神类药品的使用范围 to include treatment of most mental illnesses.能够囊括大多数的精神类疾病。...
although these drugs are not new,improvements in brain chemistry have only recently allowed them to be used to treat most mental illnesses.尽管这些都不是新的药物，由于脑化学方面的进步，最近这些药物才被允许用于治疗...
although these drugs are not new,improvements in brain chemistry have only recently allowed them to be used to treat most mental illnesses.译：尽管这种药物并不是新药，但是它们有助于大脑化学物质改善，所以这种药...
