Home HSK Vocabulary HSK 7–9 空前 空前 kōng qián HSK 7–9 · C2 Meanings unprecedented Quick facts HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 Overview Practice 空前 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android. ← All HSK 7–9 vocabulary