Home / HSK Vocabulary / HSK 7–9 / 空地 空地 kōng dì HSK 7–9 · C2 Meanings air-to-surface (missile) Quick facts HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 word list Practice 空地 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android.