Home / HSK Vocabulary / HSK 7–9 / 海藻 海藻 hǎi zǎo HSK 7–9 · C2 Meanings seaweed marine alga kelp Quick facts HSK LevelHSK 7–9 CEFRC2 ← Back to HSK 7–9 word list Practice 海藻 with flashcards MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android.