HSK 7-9
皇宫
huánggōng名
imperial palace
皇宫地下密道通向城外。
Huáng gōng dì xià mì dào tōng xiàng chéng wài.
A secret passage beneath the imperial palace leads outside the city.
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Appears across levels (7-9) in the HSK 3.0 word list.