Home / HSK Vocabulary / HSK 4 / 毫米 毫米 háo mǐ HSK 4 · B2 Meanings millimeter Quick facts HSK LevelHSK 4 CEFRB2 ← Back to HSK 4 word list Practice 毫米 with flashcards MandoBridge uses spaced repetition to help you remember HSK 4 vocabulary — free on iOS and Android.