[N-COUNT 可数名词]毛衣;针织衫 A sweater is a warm knitted piece of clothing which covers the upper part of your body and your arms.
Oxford
sweat·er★/ˈswetə(r); NAmEˈswetər/noun _sweaters_jumpers_comp.jpg _crewneck.jpg a knitted piece of clothing made of wool or cotton for the upper part of the body, with long sleeves. In British English the word is used to describe a piece of clothing with no buttons. In American English a sweatercan have buttons and be like a jacket. 毛衣,线衣(英式英语指套头无扣的;美式英语可指开襟有扣的)sweatersweaterssweat·er/ˈswetə(r); NAmEˈswetər/