Will such contests, which are overwhelmingly dominated by Asian and white students from middle-class and affluent families, become any more diverse?

这种由来自中产阶级和富裕家庭的亚裔和白人学生占压倒性优势的竞赛，会不会变得更加多样化？

youdao

The more affluent children end up in college and on the way to the middle class, while working-class children tend to struggle.

更富裕的孩子们最终上了大学，走上了中产阶级的道路，而工薪阶层的孩子们往往会艰难挣扎。

youdao

This year, however, Mr. Obama ran on a platform of guaranteed health care and tax breaks for the middle class, paid for with higher taxes on the affluent.

然而今年，奥巴马的竞选纲领则是：提供医疗保障、为中产阶级减税，并且通过提高富人税收的方式支付所需资金。

youdao

The new status symbol of the country's affluent class is no longer jewelry, but expensive mobile phones, Ipods or designer labels.

VOA: standard.2009.09.19

In his new book he looks at the rise of the mass affluent class and its discontents.

FORBES: Side Lines

Over that period, a large coastal affluent class, now increasingly elderly, enjoyed a spectacular run of rising real estate prices and in some places, like Silicon Valley, a progression of stock windfalls.

FORBES: For A Preview Of Obama's America In 2016, Look At The Crack-Up Of California

You know, it's an affluent middle class sort of cookie cutter "Leave It To Beaver" image.

NPR: Poverty, Still Coming To A Suburb Near You