HSK 7-9
底蕴
dǐyùn名
inside information; concrete details
古城深厚的文化底蕴吸引游客。
Gǔ chéng shēn hòu de wén huà dǐ yùn xī yǐn yóu kè.
The ancient city's rich cultural heritage attracts visitors.
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Appears across levels (7-9) in the HSK 3.0 word list.