失语者 meaning in Chinese

aphasiac
aphasic

His comment on receiving the prize was that it renewed his dedication to act as a voice for the voiceless
对于自己的获奖，他评论说它再次激起了自己为失语者疾呼呐喊的热情和信念。
As aims at the social vulnerable groups in mass media dissemination status question , this article carries on the historical observation according to the time order , makes collection of and the analysis the material
弱势群体的声音在传媒中越来越脆弱,传媒总是有意无意地将社会弱势群体置于社会注意力的边缘地带,使他们成为媒体的“缺席者”和“失语者” 。