Every household; a vast number of families or households.
指众多人家。
孙犁《画的梦》千家万户的年画，给了我很多知识。”
The electricity outage affected thousands of households.
Learn the next connected idiom: 千家万户 (qiān jiā wàn hù) → 户枢不蠹 (hù shū bù dù)
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