It's the idea of progress that rankles the chattering class.
是进步的想法激怒了喋喋不休的阶级。
北京外国语大学-跨文化交际
What about a radio interviewer? One of the chattering classes. What would you predict about the number of friends I get to see in the course of a week?
电台采访者呢？一个喋喋不休的阶级。你估计我一周能见到的朋友的数量是多少？
英语百科
Chattering classes
The chattering classes is a generally derogatory term first coined by Auberon Waugh often used by pundits and political commentators to refer to a politically active, socially concerned and 'highly' educated section of the "metropolitan middle class", especially those with political, media, and academic connections.