You could call it the global middle class.

可称之为全球中产阶级。

youdao

By most estimates, the global middle class will more than double in number between now and 2030.

根据大多数的估计，从现在到2030年间，全球中产阶级人数会是现在的两倍多。

youdao

The liquidity of the global middle class is not there but the liquidity of Goldman Sachs partners is soaring.

全球中产阶级的流动资金没有增长，但高盛合伙人的流动资金却在飞速增长。

youdao

The global middle class now totals 2 billion people that spend 6.9 trillion annually.

FORBES: The Finances Of The Global Middle Class

In 2009, the Chinese consumer accounted for 4% of global middle class consumption.

FORBES: Is The China Consumer Story Overblown?

McKinsey forecasts that, in the next twenty years, the global middle class will nearly triple to around 4.6 million people.

FORBES: Bernanke's Big Question: What's Ahead For Inflation?