Home HSK Vocabulary HSK 4 是否 是否 shì fǒu HSK 4 · B2 Meanings whether (or not) if is or isn't Quick facts HSK LevelHSK 4 CEFRB2 ← Back to HSK 4 Overview Practice 是否 with flashcards MandoBridge uses spaced repetition to help you remember HSK 4 vocabulary — free on iOS and Android. ← All HSK 4 vocabulary