jam

英 [dʒæm]

美 [dʒæm]

n.  果酱; 拥挤; 堵塞; 卡住(因而发生故障)
v.  使劲(往某处)挤(或压、塞); (使)卡住，不能动弹，不能运转; 塞入; 塞进; 挤进

过去分词：jammed　复数：jams　现在分词：jamming　过去式：jammed　第三人称单数：jams　

高考CET4CET6考研IELTSTEM4

Oxford 3000 / Collins.2 / BNC.5571 / COCA.5470

同义词辨析

blockchokeclogdamjam【导航词义：挡住】

习惯用语

n.

be in a jam
• 陷入困境
  to be in a difficult situation
jam tomorrow
• 可望而不可即的美好未来；许而不予的好东西
  good things that are promised for the future but never happen
• They refused to settle for a promise of jam tomorrow.
  他们并不满足于那些美好未来的空话。
money for jam/old rope
• 容易赚的钱财
  money that is earned very easily, for sth that needs little effort

v.

jam on the brake(s)jam the brake(s) on
• 猛踩刹车
  to operate the brakes on a vehicle suddenly and with force
• The car skidded as he jammed on the brakes.
  他紧急刹车，汽车向侧边打滑。

牛津词典

noun

甜食 sweet food
• 果酱
  a thick sweet substance made by boiling fruit with sugar, often sold in jars and spread on bread
  1. strawberry jam
     草莓酱
  2. recipes for jams and preserves
     果酱和蜜饯的制作方法
  3. a jam doughnut
     果酱炸面圈
许多人 / 车辆 many people/vehicles
• 拥挤；堵塞
  a situation in which it is difficult or impossible to move because there are so many people or vehicles in one particular place
  1. The bus was delayed in a five-mile jam.
     公共汽车因长达五英里的交通堵塞而延误。
  2. As fans rushed to leave, jams formed at all the exits.
     因球迷都急于离开，所有出口都给阻塞了。
机器 machine
• 卡住（因而发生故障）
  a situation in which a machine does not work because sth is stuck in one position
  1. There's a paper jam in the photocopier.
     复印机卡纸了。

verb

用力推 push with force
• 使劲（往某处）挤（或压、塞）
  to push sth somewhere with a lot of force
  1. He jammed his fingers in his ears.
     他用手指使劲堵住耳朵。
  2. A stool had been jammed against the door.
     门被一个凳子顶住了。
停止移动 / 运转 stop moving/working
• （使）卡住，不能动弹，不能运转
  to become unable to move or work; to make sth do this
  1. The photocopier keeps jamming up.
     这复印机总是卡纸。
  2. There's a loose part that keeps jamming the mechanism.
     有个零件松了经常卡住机器。
  3. The valve has jammed shut.
     阀门给卡住了打不开。
  4. He jammed the door open with a piece of wood.
     他用一块木头卡住门让它开着。
塞进 put into small space
• 塞入；塞进；挤进
  to put sb/sth into a small space where there is very little room to move
  1. Six of us were jammed into one small car.
     我们六个人被塞进一辆小汽车里。
  2. We were jammed together like sardines in a can.
     我们像罐头里的沙丁鱼一般紧紧挤在一起。
  3. The cupboards were jammed full of old newspapers.
     橱柜里塞满了旧报纸。
  4. Nearly 1 000 students jammed into the hall.
     近1 000名学生挤到礼堂里。
挤满人 / 物 fill with people/things
• 挤满；塞紧
  to fill sth with a large number of people or things so that it is unable to function as it should
  1. Viewers jammed the switchboard with complaints.
     打电话投诉的观众使总机应接不暇。
无线电广播 radio broadcast
• （发射无线电波）干扰
  to send out radio signals to prevent another radio broadcast from being heard
演奏音乐 play music
• 即兴演奏
  to play music with other musicians in an informal way without preparing or practising first

柯林斯词典

• N-MASS 果酱
  Jamis a thick sweet food that is made by cooking fruit with a large amount of sugar, and that is usually spread on bread.
  1. ...home-made jam.
     自制果酱

in AM, usually use 美国英语通常用jelly


• VERB 硬推；硬塞；使劲放
  If youjamsomething somewhere, you push or put it there roughly.
  1. He picked his cap up off the ground and jammed it on his head...
     他从地上捡起帽子，猛地扣到头上。
  2. Pete jammed his hands into his pockets.
     皮特使劲把手插进口袋里。
• V-ERG （机器）卡住；使卡住；（使）不能运转
  If something such as a part of a machinejams, or if somethingjamsit, the part becomes fixed in position and is unable to move freely or work properly.
  1. The second time he fired his gun jammed...
     他开第二枪时枪卡壳了。
  2. A rope jammed the boat's propeller...
     一根绳子卡住了船的螺旋桨。
  3. Cracks appeared in the wall and a door jammed shut...
     墙上出现了裂缝，一扇门卡住打不开了。
  4. The intake valve was jammed open...
     进气阀卡住了，关不上。
  5. Every few minutes the motor cut out as the machinery became jammed.
     机器老是卡住，马达隔不了几分钟就突然熄火。
• VERB （车辆）堵住，堵塞（道路）
  If vehiclesjama road, there are so many of them that they cannot move.
  1. Hundreds of departing motorists jammed the roads.
     数百名打算驾车离开的司机堵住了道路。
• VERB （人）塞进，挤进
  If a lot of peoplejama place, orjam intoa place, they are pressed tightly together so that they can hardly move.
  1. Hundreds of people jammed the boardwalk to watch...
     数百人挤在木板人行道上观看。
  2. They jammed into buses provided by the Red Cross and headed for safety.
     他们挤上红十字会派来的巴士前往安全的地方。
• VERB 干扰（无线电或电子信号）
  Tojama radio or electronic signal means to interfere with it and prevent it from being received or heard clearly.
  1. They will try to jam the transmissions electronically.
     他们会试图用电子信号对发射进行干扰。
• VERB 使（电话总机）应接不暇；使（电话线）过于繁忙
  If callersare jammingtelephone lines, there are so many callers that the people answering the telephones find it difficult to deal with them all.
  1. Hundreds of callers jammed the BBC switchboard for more than an hour...
     在一个多小时内，成百上千的来电使得英国广播公司的总机应接不暇。
  2. The telephone exchange has been jammed all day with people wanting to buy season tickets.
     很多人想买季票，电话总机一天到晚忙个不停。
• N-SING 陷入困境
  If someone isinajam, they are in a very difficult situation.
  1. They were in a real jam, Bob thought glumly.
     他们确实遇上麻烦了，鲍勃闷闷不乐地想。
• VERB （爵士乐手或摇滚乐手）即兴演奏
  When jazz or rock musiciansare jamming, they are informally playing music that has not been written down or planned in advance.
  1. He was jamming with his saxophone.
     他在即兴吹奏萨克斯管。
• See also:traffic jam

英英释义

noun

• deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
  Synonym:jammingelectronic jamming
• preserve of crushed fruit
• a dense crowd of people
  Synonym:crushpress
• informal terms for a difficult situation
  1. he got into a terrible fix
  2. he made a muddle of his marriage
  Synonym:fixholemessmuddlepicklekettle of fish

verb

• interfere with or prevent the reception of signals
  1. Jam the Voice of America
  2. block the signals emitted by this station
  Synonym:block
• block passage through
  1. obstruct the path
  Synonym:obstructobturateimpedeoccludeblockclose up
• crush or bruise
  1. jam a toe
  Synonym:crush
• crowd or pack to capacity
  1. the theater was jampacked
  Synonym:jampackramchock upcramwad
• get stuck and immobilized
  1. the mechanism jammed
• push down forcibly
  1. The driver jammed the brake pedal to the floor
• press tightly together or cram
  1. The crowd packed the auditorium
  Synonym:throngmobpackpile

双语例句

• The second time he fired his gun jammed
  他开第二枪时枪卡壳了。
• Crabtree& Evelyn has just launched a new jam, Worcesterberry Preserve
  瑰珀翠刚推出一款新果酱——伍斯特浆果果酱。
• A rope jammed the boat's propeller
  一根绳子卡住了船的螺旋桨。
• They jammed into buses provided by the Red Cross and headed for safety.
  他们挤上红十字会派来的巴士前往安全的地方。
• Did she do things like bottling fruit or making jam?
  她干过将水果装瓶或做果酱之类的活计吗？
• Heat the jam until it liquefies
  把果酱加热至其熔化。
• They will try to jam the transmissions electronically.
  他们会试图用电子信号对发射进行干扰。
• There is a traffic jam.
  交通阻塞。
• The telephone exchange has been jammed all day with people wanting to buy season tickets.
  很多人想买季票，电话总机一天到晚忙个不停。
• Every few minutes the motor cut out as the machinery became jammed.
  机器老是卡住，马达隔不了几分钟就突然熄火。