the one percent idiom (also the 1%)
最富有的那百分之一（指社会上拥有最多金钱、房产和权力的那一小部分人）
the richest one percent of people, who are said to have most of the money, property, and power in society
He promised to govern in the interests of all, and not just the one percent. 他承诺为所有人的利益而治理，而不仅仅是那百分之一的富豪。