middle-classes

The middle-class has grown in many cities as more people find office jobs.

随着更多人找到办公室工作，许多城市的中产阶级壮大了。

用法提示：middle-class 在此作集合名词，指中产阶级整体。

Many middle-classes around the world face rising housing costs.

世界上许多中产阶级群体正面临不断上涨的住房成本。

用法提示：middle-classes 是 middle-class 的复数形式，表示多个中产群体。

She wrote a book about the middle-class and its changing lifestyle.

她写了一本关于中产阶级及其生活方式变化的书。

用法提示：middle-class 作名词，用 the middle-class 指中产阶级这一社会阶层。