bolt

noun

1. （门窗的）闩，插销
   a long, narrow piece of metal that you slide across the inside of a door or window in order to lock it
2. 螺栓
   a piece of metal like a screw without a point which is used with a circle of metal (= a nut ) to fasten things together
   1. nuts and bolts
      螺帽和螺栓
3. 闪电
   a sudden flash of lightning in the sky, appearing as a line
4. 弩箭
   a short heavy arrow shot from a crossbow
5. 一匹（布）
   a long piece of cloth wound in a roll around a piece of cardboard

verb

1. 用插销闩上；能被闩上
   to fasten sth such as a door or window by sliding a bolt across; to be able to be fastened in this way
   1. Don't forget to bolt the door.
      别忘了闩门。
   2. The gate bolts on the inside.
      大门在里面上闩。
2. 用螺栓把（甲和乙）固定在一起
   to fasten things together with a bolt
   1. The vice is bolted to the workbench.
      这虎钳是用螺栓固定在工作台上的。
   2. The various parts of the car are then bolted together.
      然后汽车的各种部件便用螺栓装配在一起。
3. （马等受惊）脱缰
   if an animal, especially a horse, bolts , it suddenly runs away because it is frightened
4. 跑开；（尤指）逃跑
   to run away, especially in order to escape
   1. When he saw the police arrive, he bolted down an alley.
      他看见警察来了，便从小巷逃走了。
5. 狼吞虎咽
   to eat sth very quickly
   1. Don't bolt your food!
      吃饭不能狼吞虎咽！
6. 停止支持（某团体或政党）
   to stop supporting a particular group or political party
   1. Many Democrats bolted the party to vote Republican.
      很多民主党人放弃本党，转而投共和党的票。
7. 过早结实（因而食用价值降低）
   to grow too quickly and start producing seeds and so become less good to eat

adv.

adv.

1. 螺栓
   A bolt is a long metal object which screws into a nut and is used to fasten things together.
2. VERB 用螺栓固定；闩上
   When you bolt one thing to another, you fasten them firmly together, using a bolt.
   1. The safety belt is easy to fit as there's no need to bolt it to seat belt anchorage points...
      由于不必扣在座位的固定夹上，安全带很容易就可以系好。
   2. Bolt the components together...
      把元器件组装在一起。
   3. The doors were bolted on.
      门都闩上了。
   4. ...a wooden bench which was bolted to the floor.
      用螺栓固定在地板上的木制长椅
3. N-COUNT （门、窗的）金属插销，闩
   A bolt on a door or window is a metal bar that you can slide across in order to fasten the door or window.
   1. I heard the sound of a bolt being slowly and reluctantly slid open.
      我听到门闩被缓慢而吃力地拉开的声音。
4. VERB 闩上（门、窗）
   When you bolt a door or window, you slide the bolt across to fasten it.
   1. He reminded her that he would have to lock and bolt the kitchen door after her.
      他提醒她,在她走后他得把厨房的门上锁并闩上。
   2. ...the heavy bolted doors.
      紧锁的大门
5. VERB （常指人或动物因受惊吓）迅速逃跑，逃窜
   If a person or animal bolts, they suddenly start to run very fast, often because something has frightened them.
   1. The pig rose squealing and bolted...
      那头猪突然嗷嗷叫着狂奔起来。
   2. I made some excuse and bolted for the exit.
      我编了个借口后便向出口冲去。
6. VERB 狼吞虎咽
   If you bolt your food, you eat it so quickly that you hardly chew it or taste it.
   1. Being under stress can cause you to miss meals, eat on the move, or bolt your food.
      人在压力之下有时会吃不上饭，或边走边吃，或是匆匆吃上几口。
   2. Bolt down means the same as bolt .
      bolt down同bolt
   3. Back then I could bolt down three or four burgers and a pile of French fries.
      那时我一顿能吃下三四个汉堡和一大堆炸薯条。
7. N-COUNT 一道（闪电）
   A bolt of lightning is a flash of lightning that is seen as a white line in the sky.
   1. Suddenly a bolt of lightning crackled through the sky.
      突然一道闪电划破长空。
8. N-COUNT （布的）一匹，一卷
   A bolt of cloth is a long wide piece of it that is wound into a roll round a piece of cardboard.
   1. ...bolts of black silk.
      成匹的黑丝绸
9. VERB （蔬菜）生长过快，结实过早（而不宜食用）
   When vegetables such as lettuces or onions bolt, they grow too quickly and produce flowers and seeds, and therefore become less good to eat.
   1. If the soil dries out the plants may bolt.
      如果土壤过干，植株可能会过早结实。
10. PHRASE 突然逃跑；慌忙逃窜
    If someone makes a bolt for somewhere, or makes a bolt for it, they make a sudden escape.
    1. His father kept a tight grip on his collar in case he should make a bolt for the door.
       他的父亲紧紧抓住他的衣领，防止他夺门而逃。
11. PHRASE 晴天霹雳；出人意表；令人大吃一惊
    If a piece of news comes like a bolt from the blue, it is completely unexpected and very surprising.
    1. The company decided to appoint a Japanese manager as president of the company. The decision came as a bolt from the blue.
       公司决定任命一位日籍经理担任总裁。这个决定太出乎意料了。
12. PHRASE 挺直地；笔直地
    If someone is sitting or standing bolt upright, they are sitting or standing very straight.
    1. When I pushed his door open, Trevor was sitting bolt upright in bed.
       当我推开特雷弗的房门时，他正腰杆笔直地坐在床上。
13. nuts and bolts → see: nut

1. The safety belt is easy to fit as there's no need to bolt it to seat belt anchorage points
   由于不必扣在座位的固定夹上，安全带很容易就可以系好。
2. Bolt the components together
   把元器件组装在一起。
3. The doors were bolted on.
   门都闩上了。
4. I heard the sound of a bolt being slowly and reluctantly slid open.
   我听到门闩被缓慢而吃力地拉开的声音。
5. He reminded her that he would have to lock and bolt the kitchen door after her.
   他提醒她，在她走后他得把厨房的门上锁并闩上。
6. The pig rose squealing and bolted
   那头猪突然嗷嗷叫着狂奔起来。
7. I made some excuse and bolted for the exit.
   我编了个借口后便向出口冲去。
8. Suddenly a bolt of lightning crackled through the sky.
   突然一道闪电划破长空。
9. If the soil dries out the plants may bolt.
   如果土壤过干，植株可能会过早结实。
10. His father kept a tight grip on his collar in case he should make a bolt for the door.
    他的父亲紧紧抓住他的衣领，防止他夺门而逃。
11. The company decided to appoint a Japanese manager as president of the company. The decision came as a bolt from the blue.
    公司决定任命一位日籍经理担任总裁。这个决定太出乎意料了。
12. When I pushed his door open, Trevor was sitting bolt upright in bed.
    当我推开特雷弗的房门时，他正腰杆笔直地坐在床上。
13. The donkey brayed and tried to bolt.
    这头驴嘶叫着试图脱缰而逃。
14. Loosen the bolt so the bars can be turned
    松一松插销，好转动门闩。
15. There was an old rusting bolt on the door.
    门上有一个生锈的旧门闩。
16. Her mother was sitting bolt upright, scrunching her white cotton gloves into a ball.
    她母亲坐得笔直，把她的白手套揉成了球状。
17. He slides the bolt in place to keep the door from swinging.
    他推上插销，使门不摇晃。
18. Don't fiddle with the rifle bolt.
    别搬弄枪栓。
19. The public security men drove straight to the bandits 'den with the suddenness of thunder bolt.
    公安人员以迅雷不及掩耳之势直捣匪巢。
20. The farmer slides the bolt in place to keep the gate from swinging.
    农夫推上门闩，使门不摇晃。
21. There's a bolt on the door.
    门上有门闩。
22. He slammed the door and drove the bolt home.
    他砰地一声关上门，把插销拴好。
23. The grievous news came like a bolt from the blue.
    噩耗传来，犹如晴天霹雳。
24. The horse did a bolt.
    那匹马受惊逃脱。
25. The fixed connecting piece consists of a bolt and a screw cap.
    固定连接件由螺栓和螺帽组成。
26. The part of a bolt between the thread and the head.
    螺钉的头部和螺纹之间的部分。
27. Manufacture method of anchor bolt plate is introduced and stress distribution in laboratory is analyzed in this paper.
    介绍了锚杆测力托盘的制作方法，在实验室对锚杆托盘的应力分布进行了分析。
28. Moreover, the characteristics and key points in construction of tubular rock bolt are presented in this paper.
    此外，文章还对管式锚杆的特点及施工要点进行了分析和论述。
29. He used a wrench to loosen the bolt.
    他用板手松开了螺栓。
30. I don't know, but he was ready with the bolt cutter.
    我不知道，但是他准备好了断线钳。

  eat bolt chew devour【导航词义：吃】

  eat v. 吃，食用

〔辨析〕普通用词，通常指用餐、吃东西。

  bolt v. 狼吞虎咽

〔辨析〕指匆匆吞咽食物，通常与 down 连用。

  chew v. 嚼，咀嚼

〔辨析〕指用牙齿嚼碎食物等。

  devour v. 吞咽

〔辨析〕指饥饿时狼吞虎咽地吃东西，强调吃得快而彻底。

  escape bolt flee run away【导航词义：逃跑】

  escape v. 逃跑，逃脱

〔辨析〕用作不及物动词时，常指逃脱监禁、管制等，常后接介词 from/out of；用作及物动词时，指逃避或躲避监禁、惩罚、灾难等。

  bolt v. 逃跑，逃窜

〔辨析〕指匆匆逃离。

  flee v. 〈书〉逃走，逃离

〔辨析〕尤指因害怕有危险而逃跑，强调逃跑时动作匆忙；指逃离某个具体场所时，可作及物动词。

  run away phr. v. 逃跑，跑掉

〔辨析〕多用于口语，指突然逃离，尤指秘密地逃离某处。

n.

a bolt from the blue

• 突如其来的事件（或消息）；晴天霹雳
  an event or a piece of news which is sudden and unexpected; a complete surprise
  1. Her dismissal came as a bolt from the blue.
     她被解雇简直就是晴天霹雳。

make a bolt for sth

make a bolt for it

• 迅速逃跑；溜走
  to run away very fast, in order to escape

the nuts and bolts (of sth)

• 基本要点
  the basic practical details of a subject or an activity

have shot your bolt

• 竭尽全力；倾其所有
  to have used all your power, money or supplies

v.

close, lock, etc. the stable door after the horse has bolted

• 马跑了才去关厩门；贼走关门，为时已晚
  to try to prevent or avoid loss or damage when it is already too late to do so

adv.

sit/stand bolt upright

• 背部笔挺地坐 / 站；坐 / 站得笔直
  to sit or stand with your back straight

noun

1. a sudden abandonment (as from a political party)

2. the act of moving with great haste
   1. he made a dash for the door

   Synonym:    dash

3. a screw that screws into a nut to form a fastener

4. the part of a lock that is engaged or withdrawn with a key

   Synonym:    deadbolt

5. a sliding bar in a breech-loading firearm that ejects an empty cartridge and replaces it and closes the breech

6. a roll of cloth or wallpaper of a definite length

7. a discharge of lightning accompanied by thunder

   Synonym:    thunderboltbolt of lightning

verb

1. make or roll into bolts
   1. bolt fabric

2. eat hastily without proper chewing
   1. Don't bolt your food!

   Synonym:    gobble

3. swallow hastily

4. secure or lock with a bolt
   1. bolt the door

5. move or jump suddenly
   1. She bolted from her seat

6. leave suddenly and as if in a hurry
   1. The listeners bolted when he discussed his strange ideas
   2. When she started to tell silly stories, I ran out

   Synonym:    run offrun outbolt outbeetle off

7. run away
   1. The thief made off with our silver
   2. the accountant absconded with the cash from the safe

   Synonym:    abscondabsquatulatedecamprun offgo offmake off

adv

1. in a rigid manner
   1. the body was rigidly erect
   2. he sat bolt upright

   Synonym:    rigidlystiffly

2. directly
   1. he ran bang into the pole
   2. ran slap into her

   Synonym:    bangslapslapdashsmack