acetic acid
acetic-acid的词性：
n.（名词）
1. A clear, colorless organic acid, CH3COOH, with a distinctive pungent odor, used as a solvent and in the manufacture of rubber, plastics, acetate fibers, pharmaceuticals, and photographic chemicals. It is the chief acid of vinegar.
乙酸，醋酸：一透明，无色的有机酸，CH3COOH，有极具刺激性的味道，用作溶剂并用于橡胶生产、塑料、醋酸纤维、药剂及摄影化学药品。为主要的醋酸