slum

Their family shared a small room in a crowded slum. ▶

他们一家挤住在拥挤贫民窟里的一间小屋中。

Improving sanitation and access to clean water can significantly reduce disease in densely populated slums.

改善卫生设施和清洁水源的获取条件，可以显著减少人口密集的贫民窟中的疾病。