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