税务压倒了中产阶级的下层。

This tax bears down on the lower middle class.

youdao

对于我来说，这可能是中产阶级的下层水平吧，但这要比世界98%其他人的生活要好多了。

To me, that's maybe lower end of the middle class, but it's better than 98 percent of the people in the world.

youdao

进行这样的研究的原因为了准确分析社会中产阶级中哪部分人群（中产阶级的下层或高层）在商场购物的次数和购物量更多。

The reason for conducting such a research is to find out which sections of the society (lower middle class or higher middle class) do a lot of shopping in the malls.

youdao