哪位英语高手能不能帮我翻译几个俚语（急用）万分感激

1.公开
2 经常出现于咖啡馆的阶层/人士
Café society was the collective description for the so-called "beautiful people" and "bright young things" who gathered in fashionable cafes and restaurants in Paris, London, Rome or New York, beginning in the late 1800s. Lucius Beebe, noted American author, journalist, gourmand, and railroad enthusiast is generally credited with creating the term "café society," which he chronicled in his weekly column, This New York, for the New York Herald Tribune during the 1920s and 1930s.

Although members of café society were not necessarily members of The Establishment or other ruling class groups, they were people who attended each other's private dinners and balls, took holidays in exotic locations or at elegant resorts, and whose children tended to marry the children of other café society members.

In the United States, café society came to the fore with the end of Prohibition in December 1933 and the