Read Edit View history 变酸 biànsuān turn sour Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 变酸/變酸 · biànsuān · turn sour 2026/03/08 变酸 / 變酸 biànsuān turn sour to undergo a chemical change resulting in a sour taste, typically referring to food or beverages spoiling. 牛奶变酸了。 verb created sense Mar 8, 2026, 04:46 AM