bolt

名词 bolt:

1. a discharge of lightning accompanied by thunder
   同义词：thunderbolt, bolt of lightning
2. a sliding bar in a breech-loading firearm that ejects an empty cartridge and replaces it and closes the breech
3. the part of a lock that is engaged or withdrawn with a key
   同义词：deadbolt
4. the act of moving with great haste
   同义词：dash
5. a roll of cloth or wallpaper of a definite length
6. a screw that screws into a nut to form a fastener
7. a sudden abandonment (as from a political party)

动词 bolt:

1. move or jump suddenly
2. secure or lock with a bolt
3. swallow hastily
4. run away; usually includes taking something or somebody along
   同义词：abscond, absquatulate, decamp, run off, go off, make off
5. leave suddenly and as if in a hurry
   同义词：run off, run out, bolt out, beetle off
6. eat hastily without proper chewing
   同义词：gobble
7. make or roll into bolts

副词 bolt:

1. in a rigid manner
   同义词：rigidly, stiffly
2. directly
   同义词：bang, slap, slapdash, smack

1. The gate bolts on the inside.
   这大门是从里面闩上的。
2. We need an eye bolt to fit this valve.
   我们需要一个有眼螺栓来固定这个阀门。
3. The frightened boy bolted all the doors and windows.
   这个吓坏了的孩子闩上了所有的门窗。

bolt

n.（名词）
A bar made of wood or metal that slides into a socket and is used to fasten doors and gates.
门闩，插销：用木或金属制成的条，插入闩中用于固紧门
A metal bar or rod in the mechanism of a lock that is thrown or withdrawn by turning the key.
锁簧：锁上的金属条或杆，旋转锁可将其压进或抽出锁孔
A fastener consisting of a threaded pin or rod with a head at one end, designed to be inserted through holes in assembled parts and secured by a mated nut that is tightened by applying torque.
螺栓：一种由可穿过的栓或竿构成的条形紧固器，一端有头，用于插进集合部分相应的孔，再用配对的螺帽旋紧

A sliding metal bar that positions the cartridge in breechloading rifles, closes the breech, and ejects the spent cartridge.
枪栓，枪机：装在后枪膛中为子弹定位的滑动金属条，可关闭枪膛和输入将用的子弹
A similar device in any breech mechanism.
栓：在有膛机械中的类似设备
A short, heavy arrow with a thick head, used especially with a crossbow.
弩箭：一种大头的短而重的箭，尤与弩连用
A flash of lightning; a thunderbolt.
闪电；霹雳
A sudden or unexpected event:
突发事件：
例句：
The announcement was a veritable bolt.
这告示是千真万确的突发事件

A sudden movement toward or away.
猛冲，逃跑
A large roll of cloth of a definite length, especially as it comes from the loom.
一匹：有一定长度的，尤指当其从织机上卸下来时的一卷布
v.（动词）
bolt.ed,bolt.ing,bolts
v.tr.（及物动词）
To secure or lock with or as if with a bolt.
栓住，锁：用或好象用锁固定或锁住
To arrange or roll (lengths of cloth, for example) on or in a bolt.
将布卷成匹，整理布匹：将（例如布）安置或卷在一个栓上
To eat (food) hurriedly and with little chewing; gulp.
匆匆咽下，囫囵吞吃：快速的且很少嚼的吃（食物）；吞食
To desert or withdraw support from (a political party).
退出：从（政党）中脱离，或不再支持
To utter impulsively; blurt.
脱口而出；急促地说
Archaic To shoot or discharge (a missile, such as an arrow).
【古语】 射：投射或发出（发射物，如箭）
v.intr.（不及物动词）
To move or spring suddenly.
迅速移动，突然跳起
To start suddenly and run away:
惊跑：突然起动且逃跑：
例句：
The horse bolted at the sound of the shot. The frightened child bolted from the room.
听到射击声，马脱缰逃跑。吓坏了的孩子从屋子中飞跑出来

To break away from a political party or its policies.
脱党：从一个政党脱离出来，拒绝支持党的政策
Botany To flower or produce seeds prematurely or develop a flowering stem from a rosette.
【植物学】 过早的生子（结实）：植物未成熟期开花或结实，从蔷薇结长为花柄

<习惯用语>bolt from the blue
A sudden, shocking surprise or turn of events.
晴天霹雳：事件的突发或突然转变
来源：
Middle English
中古英语
from Old English [heavy arrow]
源自 古英语 [重箭]

bolt
bolt 2

v.tr.（及物动词）
bolt.ed,bolt.ing,bolts
To pass (flour, for example) through a sieve.
筛，筛选：用筛子筛选（面粉等）

来源：
Middle English bulten
中古英语 bulten
from Old French buleter
源自 古法语 buleter
from Middle High German biuteln
源自 中古高地德语 biuteln
from biutel [bag, purse]
源自 biutel [袋子，钱包]