Our specialty here are Italian wines, and these tend to be fruity with medium acidity.
2018年6月六级真题(第二套)听力 Section A
柯林斯高阶英汉双解学习词典释义
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An acid is a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts. Some acids burn or dissolve other substances that they come into contact with.