N-COUNT (能改善食物和饮料的味道、颜色或延长其保质期的)添加剂(欧洲以字母E开头的特定编码)E numbers are artificial substances which are added to some foods and drinks to improve their flavour or colour or to make them last longer. They are called E numbers because they are represented in Europe by code names which begin with the letter 'E'. (能改善食物和饮料的味道、颜色或延长其保质期的)添加剂(欧洲以字母E开头的特定编码) [British]