0 Old HSK word(s):


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Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Wasserenthärtung (S, Chem) [ying4 shui3 ruan3 hua4] 硬水软化
Wasserhärte (S, Chem) [ying4 shui3] 硬水