工薪阶层家庭负担不起这些价格。

___Working-class families can't afford these prices.

而且，来自巴黎郊区的工薪阶层家庭的年轻人会特意穿最新潮的鞋或裤子。

And young people from ___working-class families in the suburbs of Paris will make a point of having the latest fashion shoes or trousers.

他出身于工薪阶层背景，通过努力工作取得成功。

He comes from a ___working-class background and worked hard to succeed.