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lactic acid

noun
🔊/ˌlæktɪk ˈæsɪd/
🔊/ˌlæktɪk ˈæsɪd/
[uncountable]
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  1. a substance that forms in milk that is no longer fresh and is also produced in the muscles during hard exercise乳酸
    • the increasingly painful build-up of lactic acid in your muscles乳酸在肌肉中的逐渐增加让人越来越痛苦