청산가리靑酸加里 potassium cyanide 탄산炭酸 carbonic acid 탄산음료炭酸飮料 soda; carbonated drink 황산黃酸 sulfuric acid 강산強酸 strong acid 강산성強酸性 acidity 산酸 acid 산성酸性 acidity 산성화酸性化 acidification 산소酸素 oxygen 산소통酸素桶 oxygen tank; oxygen cylinder 약산성弱酸性 subacidity 위산胃酸 stomach acid 유산균乳酸菌 lactobacillus; lactic acid bacteria the bacteria 이산화 탄소二酸化炭素 carbon dioxide 지방산脂肪酸 fatty acid