vt.

1. 塞进；挤进；把……塞满；使挤满[O]
   Thousands of people jammed the stadium.

   成千上万的人把体育场挤得满满的。

   The bus was so full that I was jammed in and couldn't move.

   公共汽车是如此拥挤，我被挤得动弹不得。

   He jammed four apples in his pocket.

   他把四个苹果塞进口袋。

2. 堵住，塞住
3. 压碎；挤伤（手指等）
   I jammed my finger in the door.

   我的手指给门轧伤了。

4. 使卡住；使发生故障
   The door is jammed and I can't open it.

   门卡住了，我打不开。

5. 猛推；猛压；急踩（刹车）[O]
   He jammed the brakes on.

   他猛地把车刹住。

6. 【无】干扰（广播等）

vi.

1. 塞紧；挤满；堵塞
   A crowd jammed into the bus.

   一群人涌上公共汽车。

2. 卡住，不能动弹；发生故障[（+up）]
   The key jammed in the lock.

   钥匙卡在锁里了。

n.[C]

1. 拥挤；堵塞；轧住
   We were stuck in a traffic jam on our way to the airport.

   我们去机场的路上交通阻塞了。

   We got into a traffic jam.

   我们遇上了交通堵塞。

2. 拥挤的人群；堵塞物
3. 【美】【口】困境，窘境
   I was in a jam because I didn't have enough money to foot the bill.

   我带的钱不够付帐，处境很狼狈。

n.

1. 果酱[U]

v.

1. squeeze or pack tightly into a space.
   ▸push roughly and forcibly into a position.
   ▸crowd on to (a road or area) so as to block it.
2. become or make unable to move or work due to a part becoming stuck.
3. (jam something on) apply something forcibly:
   he jammed on the brakes.
4. make (a radio transmission) unintelligible by causing interference.
5. informal (in jazz or blues) improvise with other musicians.

n.

1. an instance of jamming.
2. informal an awkward situation or predicament:
   I'm in a jam.
3. Climbing  a handhold obtained by jamming a part of the body into a crack in the rock.
4. informal an improvised performance by a group of musicians, especially in jazz or blues.

n.

1. chiefly Brit. a spread or conserve made from fruit and sugar.
2. Brit. something easy or pleasant.

v.