n. 1.螺钉，螺栓。 2.(门窗等的)插销；闩，锁簧。 3.箭，矢；弩箭；【军事】枪机，枪栓。 4.电光，闪电。 5.(水等的)喷射。 6.(马等的)脱缰；跑掉，逃走，逃亡；缺课；〔美国〕脱党，变节。 7.(棉布等的)一匹；(纸等的)一卷。 8.短(木)材。 短语和例子 a bolt and nut 螺栓与螺母。 He has shot his last bolt. 他已作出最后努力[弹尽矢绝]。 stud bolt柱[双头]螺栓。 anchor bolt 地脚螺栓。 a thunder bolt 雷电，霹雳。 a bolt of linen 一匹亚麻布。 a bolt from the blue 晴天霹雳；祸从天降，意外事件。 A fool's bolt is soon shot. 1. 蠢兵乱射箭，箭筒很快空；愚者易于智穷力竭。 2. 愚者喜挥霍，很难存下钱。 do a bolt 〔俚语〕逃出。 make a bolt of it ＝ make one's bolt 〔俚语〕逃走。 shoot one's bolt 竭尽最大努力，使出浑身解数，尽其所能。 vi. 1.射出，窜出，冲出，跳出，(马等的)脱缰；逃走，逃亡；〔美俚〕缺课。 2.〔美国〕拒绝支持本党政策[提名等]，脱党，退出团体，变节。 3.狼吞虎咽。 bolt off to catch the train 飞跑去赶火车。 bolt into 窜入。 vt. 1.给(门窗等)上插销，闩(门)；(用螺栓等)栓住。 2.发射(矢、石等)。 3.囫囵吞下，仓促咽下。 4.〔美国〕拒绝支持(本党的政策等)；退出(党派、团体等)。 5.脱口说出 (out)。 6.把(纸等)卷成一卷。 短语和例子 bolt a political party 脱离某政党。 bolt one's breakfast 三口两口地吃完早饭。 bolt (sb.) in 把(某人)关在屋内。 bolt (sb.) out 把(某人)关在门外。 adv. 像箭似地，突然。 bolt upright 僵直，笔直 (sit bolt upright 坐得笔直，僵直地坐着)。 n. 筛子。 vt. 1.筛。 2.淘汰；筛选。 3.〔古语〕细查。 短语和例子 bolt to the bran 筛到糠麸；精细查勘。
in a rigid manner; "the body was rigidly erect"; "he sat bolt upright" 同义词：rigidly, stiffly, rigidly, stiffly,
directly; "he ran bang into the pole"; "ran slap into her" 同义词：bang, slap, slapdash, smack, bang, slap, slapdash, smack,
in a rigid manner; "the body was rigidly erect"; "he sat bolt upright" 同义词：rigidly, stiffly, rigidly, stiffly,
directly; "he ran bang into the pole"; "ran slap into her" 同义词：bang, slap, slapdash, smack, bang, slap, slapdash, smack,
make or roll into bolts; "bolt fabric"
eat hastily without proper chewing; "Don''t bolt your food!" 同义词：gobble,
swallow hastily
secure or lock with a bolt; "bolt the door"
move or jump suddenly; "She bolted from her seat"
leave suddenly and as if in a hurry; "The listeners bolted when he discussed his strange ideas"; "When she started to tell silly stories, I ran out" 同义词：run off, run out, bolt out, beetle off,
run away; usually includes taking something or somebody along; "The thief made off with our silver"; "the accountant absconded with the cash from the safe" 同义词：abscond, absquatulate, decamp, run off, go off, make off,
a sudden abandonment (as from a political party)
the act of moving with great haste; "he made a dash for the door" 同义词：dash,
a screw that screws into a nut to form a fastener
the part of a lock that is engaged or withdrawn with a key 同义词：deadbolt,
a sliding bar in a breech-loading firearm that ejects an empty cartridge and replaces it and closes the breech
a roll of cloth or wallpaper of a definite length
a discharge of lightning accompanied by thunder 同义词：thunderbolt, bolt of lightning,
例句与用法
1.
They had shot their last bolt . 他们已经把他们最后的招数都施出来了。
2.
Only the correct key will move bolt . 只有钥匙对头，才能转动锁眼。
3.
Bolts of lightning and heavy rains appeared . 闪电熠熠，大雨倾盆。
4.
Remember to bolt all the doors and windows . 别忘将所有门窗闩住。
5.
He locked the door and pressed the bolt home . 他锁上房门，并插好插销。
6.
He heard a bolt snick as it was pulled back . 他听到枪栓往后扳的卡嗒声。
7.
His hand felt for the bolt of the machine gun . 他的手摸到了机枪的枪栓。
8.
Bolts of all kinds became the rage at the market ... 各种腰带成了抢手货。
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