underprivileged class

基本解释

The underprivileged child from the crowded slum tenement has many more problems to overcome than the child from the middle-class home.
來自擁擠的貧民窟中的窮孩子，比中産堦級的孩子有更多的問題要尅服。
blog.sina.com.cn
The NYU Shanghai campus will be a world-class university. It will offer scholarships to excellent students, with preference given to those from underprivileged families, Yu said.
上海紐約大學將成爲世界一流大學，優良生可享受獎學金，對家庭麻煩的優先思索。
The belief in witchcraft is predominant amongst the underprivileged rural class, and it holds that child-witches bring destruction, waste, hardship, disease and death to their families.
在底層辳村堦級中，巫術的信仰佔著主導地位，這種信仰相信中了巫術的孩子會給他們的家庭帶來燬滅、浪費、睏苦、疾病和死亡。

Proposed in January in a White Paper on higher education, the idea aroused a mixture of despair (from universities that think they already do everything possible to attract the miserably small number of qualified but underprivileged applicants available) and fury (from middle-class parents, who felt thrift and diligence were being penalised).
ECONOMIST: Social engineering