家家户户 + 都 + Verb Phrase
家家户户 (jiājiā hùhù) is an idiomatic expression meaning "every household" or "each and every family." It uses reduplication of 家 (family) and 户 (household) to emphasize universality. It is commonly used to describe customs, activities, or conditions shared by all families in a community.
过年的时候,家家户户都贴春联。
Guònián de shíhou, jiājiā hùhù dōu tiē chūnlián.
During the New Year, every household puts up spring couplets.
家家户户都在准备年夜饭。
Jiājiā hùhù dōu zài zhǔnbèi niányèfàn.
Every household is preparing the New Year's Eve dinner.
中秋节那天,家家户户都吃月饼赏月。
Zhōngqiūjié nà tiān, jiājiā hùhù dōu chī yuèbǐng shǎng yuè.
On the Mid-Autumn Festival, every household eats mooncakes and admires the moon.