中文来自 ECDICT
- n.
- 果酱，拥塞之物，堵塞，困境
- vt.
- 挤进，使塞满，混杂，压碎，使堵塞
- vi.
- 堵塞，轧住，拥挤
1词源 1
演变路径（由近及远）
- 英语
- 继承自 ←中古英语 chammen
词源说明
First attested in the early 18th c. as a verb meaning “to press, be pressed, be wedged in”. Compare dialectal jammock (“to press, squeeze, crush into a soft mass, chew food"; also "a soft, pulpy substance”). Perhaps from Middle English chammen, champen ("to bite upon something, gnash the teeth"; whence modern champ, chomp), of uncertain origin; probably originally onomatopoeic.
The "performance" sense is first attested with regards to jazz in 1929, and its origin, though uncertain, is likely metaphorical, "something sweet made by the combination of many things", with influence from jamboree.
释义（英文）
名词 Noun
- (less common in the US) A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts
- (countable) A difficult situation.
- (countable) A blockage, congestion, or immobilization.
- (countable, popular music) An informal, impromptu performance or rehearsal.
- (countable, by extension, informal) A song; a track.
- (countable, by extension) An informal event where people brainstorm and collaborate