huà xué chéng fèn
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  • n.chemical composition

    • huà xué chéng fèn fā shēng le biàn huà

      化学成分发生变化

      The chemical composition changed.

    • zhè zhǒng shí pǐn de huà xué chéng fèn shì shén me

      食品化学成分什么

      What’s the chemical constitution of the food?