After the brain injury, she developed aphasia and couldn't understand what others were saying.

aphasia 是由前缀 a-（表示"缺乏、没有"）和词根 -phasia（来自希腊语，意为"说话"）组成的医学术语，字面意思是"失去说话能力"，指由于大脑损伤导致的语言障碍，表现为无法理解或表达语言。