Lactic acid is a type of acid which is found in sour milk and is also produced by your muscles when you have been exercising a lot.
N-UNCOUNT
Lactic acid is a type of acid which is found in sour milk and is also produced by your muscles when you have been exercising a lot.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012