impostor syndrome
noun [ U ] uk/ɪmˈpɒs.tə ˌsɪn.drəʊm/ us/ɪmˈpɑː.stɚ ˌsɪn.droʊm/
冒牌者症候群，冒名顶替综合征（对自我能力感到怀疑，不相信自己的成绩，或者认为自己不配获得成功 ）
the feeling that your achievements are not real or that you do not deserve praise or success
Students from working-class backgrounds often suffer from impostor syndrome, a deep-seated sense that the world of high culture is not for them. 工人阶层背景的学生往往患有冒名顶替综合征，他们内心总有一种无法融入高雅文化世界的感觉。