还原 huányuán HSK7 reconstruct Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: reduction All meanings 6 huányuán 6 reconstruct 4reduction 1restore 1 1 sentence for 还原 (huányuán — reduction) 氧化还原反应是化学实验的基础。 yǎnghuà huányuán fǎnyìng shì huàxué shíyàn de jīchǔ. Redox reactions are the foundation of chemical experiments. Source: Dong Chinese Dictionary