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a piece of clothing worn on the top half of the body over a shirt, etc. that has arms and fastens down the front; a short, light coat 夹克衫；短上衣 
a leather/denim/tweed jacket 皮／牛仔布／粗花呢上衣 I have to wear a jacket and tie to work. 我上班得穿短上衣打领带。 - in a jacket
a man in a black jacket and grey trousers 一个穿着黑色夹克和灰色裤子的男人
Extra ExamplesTopics Clothes and Fashiona1A light cotton jacket was draped over her shoulders. 她披着一件轻便的棉布夹克衫。 He pulled his passport from his inside jacket pocket. 他从夹克内侧兜里掏出了护照。 She shrugged her shoulders into her jacket. 她抬臂套上了夹克。 a padded sleeveless jacket 有夹层的无袖外套 a ski jacket 滑雪夹克
Oxford Collocations Dictionaryadjective- fitted
- tailored
- baggy
- …
- get
- grab
- pull on
- …
- hang
- sleeve
- a jacket and tie
- (also dust jacket)
a loose paper cover for a book, usually with a design or picture on it （书籍通常带有图案或画面的）护封，书套 an outer cover around a hot water pipe, etc., for example to reduce loss of heat （热水管的）保温套，绝热罩 - (British English)
the skin of a baked potato 烤过的土豆的皮 potatoes baked in their jackets 带皮烤的土豆
- (especially North American English) (also sleeve British and North American English)
a stiff paper or thick card cover for a record 外套： 用于记录的硬纸或厚卡套
Word Originlate Middle English: from Old French jaquet, diminutive of jaque; origin uncertain, perhaps based on Arabic.