| 单词 | jam |
| 释义 | jam 1. v. & n. --vtr. & intr. (jammed, jamming) 1. a tr. (usu. foll. by into) squeeze or wedge into a space. b intr. become wedged. 2. a tr. cause (machinery or a component) to become wedged or immovable so that it cannot work. b intr. become jammed in this way. 3. tr. push or cram together in a compact mass. 4. intr. (foll. by in, on to) push or crowd (they jammed on to the bus). 5. tr. a block (a passage, road, etc.) by crowding or obstructing. b (foll. by in) obstruct the exit of (we were jammed in). 6. tr. (usu. foll. by on) apply (brakes etc.) forcefully or abruptly. 7. tr. make (a radio transmission) unintelligible by causing interference. 8. colloq. (in jazz etc.) extemporize with other musicians. --n 1. a squeeze or crush. 2. a crowded mass (traffic jam). 3. colloq. an awkward situation or predicament. 4. a stoppage (of a machine etc.) due to jamming. 5. (in full jam session) colloq. improvised playing by a group of jazz musicians. Phrases and idioms jam-packed colloq. full to capacity. Derivatives jammer n. Etymology: imit. 2. n. & v. --n 1. a conserve of fruit and sugar boiled to a thick consistency. 2. Brit. colloq. something easy or pleasant (money for jam). --vtr. (jammed, jamming) 1. spread jam on. 2. make (fruit etc.) into jam. Phrases and idioms jam tomorrow a pleasant thing often promised but usu. never forthcoming. Etymology: perh. = JAM(1) |
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