HSK 7-9
家喻户晓
jiāyù-hùxiǎounderstood by everyone (idiom); well known; a household name
这位航天英雄已经家喻户晓。
Zhè wèi háng tiān yīng xióng yǐ jīng jiā yù hù xiǎo.
This spaceflight hero has become a household name.
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Appears across levels (7-9) in the HSK 3.0 word list.