英汉词典

jam 基本解释

• n. 果酱；拥挤；困境；扣篮
• vt. 使堵塞；挤进，使塞满；混杂；压碎
• vi. 堵塞；轧住
• n. (Jam)人名；(伊朗、巴基)贾姆

jam 词态变化

jam 中文词源

词源不详，可能来自cram变体，塞进，强塞，引申词义堵塞，塞车。果酱义可能来自同一词源，即把水果压碎制成果酱。

jam 英文词源

jam

jam: [18] The verb jam, meaning ‘press tightly together’, first appears in the early 18th century (the earliest-known unequivocal example of its transitive use is in Daniel Defoe’s Robinson Crusoe 1719: ‘The ship stuck fast, jaum’d in between two rocks’). It is not known where it came from, but it is generally assumed to be imitative or symbolic in some way of the effort of pushing.

Equally mysterious are the origins of jam the sweet substance spread on bread, which appeared around the same time. Contemporary etymologists were nonplussed (Nathan Bailey had a stab in the 1730s: ‘prob. of J’aime, i.e. I love it; as Children used to say in French formerly, when they liked any Thing’; but Dr Johnson in 1755 confessed ‘I know not whence derived’); and even today the best guess that can be made is that the word refers to the ‘jamming’ or crushing of fruit into jars.

jam (v.)

"to press tightly," also "to become wedged," 1706, of unknown origin, perhaps a variant of champ (v.). Of a malfunction in the moving parts of machinery, by 1851. Sense of "cause interference in radio signals" is from 1914. Related: Jammed; jamming. The adverb is recorded from 1825, from the verb.

jam (n.1)

"fruit preserve," 1730s, probably a special use of jam (v.) with a sense of "crush fruit into a preserve."

jam (n.2)

"a tight pressing between two surfaces," 1806, from jam (v.). Jazz meaning "short, free improvised passage performed by the whole band" dates from 1929, and yielded jam session (1933); but this is perhaps from jam (n.1) in sense of "something sweet, something excellent." Sense of "machine blockage" is from 1890, which probably led to the colloquial meaning "predicament, tight spot," first recorded 1914.

jam 词组搭配

jam 英文释义

1. preserve of crushed fruit

2. informal terms for a difficult situation;

"he got into a terrible fix"

"he made a muddle of his marriage"

3. a dense crowd of people

4. deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems

jam 同义词解析

press, jam, squeeze, compress, squash

这些动词均含"压，挤"之意。

press： 普通用词，指一个物体在另一个物体上加压力。

jam： 专指四面八方都压紧或塞满。

squeeze： 多指从两面或多面施加压力来压紧、压碎或压出水来。

compress： 指把某些东西压在一起或使占有较小空间。

squash： 指某物受力被压偏或压碎。也指塞挤。

jam 双语例句

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。

来自柯林斯例句

2. His room was jam-packed with fruit, flowers, gifts etc.

他的房间里堆满了水果、鲜花及礼品等。

来自柯林斯例句

3. 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？

来自柯林斯例句

4. Place them in a jam jar, porcelain bowl, or other similar container.

将它们装入果酱罐、瓷碗或其他类似容器中。

来自柯林斯例句

5. Pickled cucumbers, jam, pickled berries, tomatoes; you name it, they've got it.

酸黄瓜、果酱、腌浆果、西红柿，凡是你说得出的，他们都有。

来自柯林斯例句

jam 实用场景例句

(British English)a jam doughnut

果酱炸面圈

牛津词典

strawberry jam

草莓酱

牛津词典

recipes for jams and preserves

果酱和蜜饯的制作方法

牛津词典

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。

牛津词典

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。

牛津词典

There's a paper jam in the photocopier.

复印机卡纸了。

牛津词典

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。

牛津词典

He jammed his fingers in his ears.

他用手指使劲堵住耳朵。

牛津词典

A stool had been jammed against the door.

门被一个凳子顶住了。

牛津词典

The photocopier keeps jamming up.

这复印机总是卡纸。

牛津词典

There's a loose part that keeps jamming the mechanism.

有个零件松了经常卡住机器。

牛津词典

The valve has jammed shut.

阀门给卡住了打不开。

牛津词典

He jammed the door open with a piece of wood.

他用一块木头卡住门让它开着。

牛津词典

Six of us were jammed into one small car.

我们六个人被塞进一辆小汽车里。

牛津词典

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。

牛津词典

The cupboards were jammed full of old newspapers.

橱柜里塞满了旧报纸。

牛津词典

Nearly 1 000 students jammed into the hall.

近1 000名学生挤到礼堂里。

牛津词典

...home-made jam.

自制果酱

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

Pete jammed his hands into his pockets.

皮特使劲把手插进口袋里。

柯林斯高阶英语词典

The second time he fired his gun jammed...

他开第二枪时枪卡壳了。

柯林斯高阶英语词典

A rope jammed the boat's propeller...

一根绳子卡住了船的螺旋桨。

柯林斯高阶英语词典

Hundreds of departing motorists jammed the roads.

数百名打算驾车离开的司机堵住了道路。

柯林斯高阶英语词典

Hundreds of people jammed the boardwalk to watch...

数百人挤在木板人行道上观看。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

He was jamming with his saxophone.

他在即兴吹奏萨克斯管。

柯林斯高阶英语词典