0 Old HSK word(s):


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Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Umweltschutztechnik (S) [fang2 zhi4 gong1 hai4 ji4 shu4] 防治公害技术
Umweltschutztechnik (S) [huan2 bao3 ji4 shu4] 环保技术