Home HSK Vocabulary HSK 7–9 飞速 飞速 fēi sù HSK 7–9 · C2 Meanings swift rapidly Quick facts Traditional飛速 HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 Overview Practice 飞速 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android. ← All HSK 7–9 vocabulary