自鸣清高: profess to be above politics and worldly considerations; acting as if morally better than others; claim to be immaculate; imagine oneself to be superior to others
自封: 1.(自命) proclaim oneself; style oneself 短语和例子自封为清高 “pure and lofty” but that is merely your own name for it; 自封为王 style [proclaim; declare] oneself the king; 她自封为专家。she proclaimed herself a