Home / HSK Vocabulary / HSK 7–9 / 昔日 昔日 xī rì HSK 7–9 · C2 Meanings former days in the past Quick facts HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 word list Practice 昔日 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android.