Home / HSK Vocabulary / HSK 1 / 有用 有用 yǒu yòng HSK 1 · A1 Meanings useful Quick facts HSK LevelHSK 1 CEFRA1 ← Back to HSK 1 word list Practice 有用 with flashcards MandoBridge uses spaced repetition to help you remember HSK 1 vocabulary — free on iOS and Android.