a jacket, not worn with matching trousers, often showing the colours or badge of a club, school, team, etc.（常带有俱乐部、学校、运动队等的颜色或徽章的）夹克- He was smartly dressed in a blazer and slacks.他穿着时髦的运动衣和休闲裤。
- a school blazer校服
Topics Educationc2, Clothes and Fashionc2Oxford Collocations DictionaryBlazer is used before these nouns: See full entry Word Originlate 19th cent.: from blaze ‘burn brightly’ + -er. The original general sense was ‘a thing that blazes or shines’ (mid 17th cent.), giving rise to the term for a brightly coloured sporting jacket.