middle and low income groups

基本解释

The price is lower, and the present invention is warmly welcomed among the middle and the low income groups.
价位更为低廉，能深得广大中、低收入者的热烈欢迎。
ip.com
It has played an important role in resolving the housing problems of the middle and low-income groups in city and cap rising housing prices interiorly.
保障性住房对于当前解决中低收入群体的居住需求、抑制我国过快上涨的房价发挥了重要的作用。
d.wanfangdata.com.cn
Latin American countries report high levels of “life satisfaction” among both middle- and low-income groups.
根据该报告，拉丁美洲国家的中低收入人群“对生活的满意度”相对较高。