Home / HSK Vocabulary / HSK 5 / 加速 加速 jiā sù HSK 5 · C1 Meanings to speed up to expedite Quick facts HSK LevelHSK 5 CEFRC1 ← Back to HSK 5 word list Practice 加速 with flashcards MandoBridge uses spaced repetition to help you remember HSK 5 vocabulary — free on iOS and Android.