vi.

1. 跳；跳跃
   The horse jumped over the ditch.

   马跳过了那条沟。

2. （因喜悦、紧张等）跃起；猛跳[（+at/for）]
   My heart jumped at the news.

   听到这消息我的心猛地一跳。

3. （对结论等）匆匆作出；（对话题等）突然变动[Q]
   Don't jump to a hasty conclusion.

   不要匆匆作出结论。

4. 暴涨；猛增
   Last week, the price of food jumped.

   上星期食品价格突涨。

vt.

1. 跳过，越过
   He jumped the wall easily.

   他轻松地跳过墙去。

2. 使跳跃；使惊起
   He jumped his horse across the stream.

   他纵马跳过小溪。

3. 使（物价等）猛升
4. 【美】【俚】突然离开；逃离；逃避
   They jumped the hotel bill.

   他们未付旅馆帐单就溜走了。

5. 【口】猛地扑向

n.[C]

1. 跳跃
   He got to his feet with a jump.

   他霍地站了起来。

2. （需跳越的）障碍物
   The horse cleared all the jumps.

   那匹马越过了所有的障碍物。

3. 心惊[the P]
4. （话题等的）突然转变
5. 暴涨；猛增
   The jump in food prices gave rise to a lot of complaint.

   食品价格的猛涨引起了许多不满。

v.

1. push oneself into the air using the muscles in one's legs and feet.
   ▸pass over by jumping.
2. move suddenly and quickly.
   ▸make a sudden involuntary movement in surprise.
   ▸get on or off (a vehicle) quickly.
   ▸ (also jump on) informal attack or criticize suddenly.
3. pass abruptly from one subject or state to another.
   ▸rise or increase suddenly.
   ▸N. Amer. take summary possession of (land) after alleged abandonment or forfeiture by the former occupant.
4. informal fail to stop at (a red traffic light).
5. (be jumping) informal (of a place) be very lively.
6. (jump at/on) accept eagerly.
7. vulgar slang, chiefly N. Amer. have sex with.
8. Bridge  make a bid that is higher than necessary, in order to signal a strong hand.

n.

1. an act of jumping.
   ▸a sudden dramatic increase or change.
   ▸a sudden startled movement.
2. an obstacle to be jumped, especially by a horse in a competition.
3. N. Amer. vulgar slang an act of sexual intercourse.
4. Bridge  a bid that is higher than necessary.