新东方-柯林斯雅思备考词典

jam

英 [dʒæm]

[NOUN, VERB]

词汇频率：

NOUN. 名词

jams
1. [C, U 有变体名词] 果酱
Jam is a sweet food consisting of pieces of fruit cooked with a large amount of sugar until it is thickened. It is usually spread on bread.
2. [C 可数名词] 堵塞
If vehicles are in a jam on a road, there are so many of them that they cannot move.
双语例句
例：
400 trucks may sit in a jam for ten hours waiting to cross the limited number of bridges.
400 辆卡车可能会堵上10个小时才能通过有限的几座桥。

VERB. 动词

jams , jamming , jammed
1. [I 不及物动词] 硬塞
If you jam something somewhere, you push or put it there roughly.
双语例句
例：
Pete jammed his hands into his pockets.
皮特使劲把双手插进口袋。
2. [I 不及物动词] （机器）卡住
If something such as a part of a machine jams, or if something jams it, the part becomes fixed in position and is unable to move freely or work properly.
双语例句
例：
The second time he fired his gun jammed.
他开第二枪时，枪卡壳了。
例：
A rope jammed the boat's propeller.
一条绳子卡住了船的推进器。
3. [T 及物动词] （车辆）堵塞
If vehicles jam a road, there are so many of them that they cannot move.
双语例句
例：
Hundreds of departing motorists jammed roads that had been closed during the height of the storm.
数百名打算驾车离开的司机堵塞了公路，这些公路在风暴最猛烈时被关闭了。
4. [I 不及物动词] 挤满
If a lot of people jam a place, or jam into a place, they are pressed tightly together so that they can hardly move.
近义词
cram
双语例句
例：
Hundreds of people jammed the boardwalk to watch.
上百人挤在木板道上观看。
5. [T 及物动词] 干扰（无线电、电子信号等）
To jam a radio or electronic signal means to interfere with it and prevent it from being received or heard clearly.
双语例句
例：
They will try to jam the transmissions electronically.
他们会试图用电子信号来干扰发射。
6. [T 及物动词] 使（电话总机）应接不暇
If callers are jamming telephone lines, there are so many callers that the people answering the telephones find it difficult to deal with them all.
双语例句
例：
Hundreds of callers jammed the switchboard for more than an hour.
在一个多小时里，成百个电话使得总机应接不暇。