/ suːˈprem.ə.sɪ.z ə m / noun
the belief that a particular type or group of people should lead or have control over other types or groups because they are better than them:
Kathy's feminism clashes with her husband's male supremacism. 凯西的女权主义与她丈夫的男性至上主义水火不容。
supremacism

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/ suːˈprem.ə.sɪ.z ə m / noun
a situation in which a particular type or group of people lead or have control over other types or groups because they believe themselves to be better:
Growing up in the South gave her a firsthand taste of segregation and white supremacism. 在南方长大让她亲身体验过种族隔离和白人至上主义。

( 至上主义 Cambridge Chinese (Simplified)-English Dictionary 的翻译 © Cambridge University Press)