Home / HSK Vocabulary / HSK 5 / 空中 空中 kōng zhōng HSK 5 · C1 Meanings in the sky in the air Quick facts HSK LevelHSK 5 CEFRC1 ← Back to HSK 5 word list Practice 空中 with flashcards MandoBridge uses spaced repetition to help you remember HSK 5 vocabulary — free on iOS and Android.