"bright-colored jacket," 1880, British university slang, from blaze (n.1), in reference to the red flannel jackets worn by the Lady Margaret, St. John College, Cambridge, boating club. Earlier it had been used in American English in the sense "something which attracts attention" (1845).
实用例句
1. He wore his cleanest slacks, a clean shirt and a navy blazer.
他穿着他最干净的便裤，洁净的衬衫和藏青色上装。
来自柯林斯例句
2. Now he took off the blazer and slung it over his shoulder.
于是他脱下运动衫搭在肩上.
来自辞典例句
3. The man wore a straw boater and a striped blazer which bulged over his paunch.
他戴着顶硬草帽,上身带条纹的运动夹克裹着他的大肚子.
来自辞典例句
4. A single breasted navy blue blazer bearing two silver buttons.