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N-COUNT
螺栓
A bolt is a long metal object which screws into a nut and is used to fasten things together.
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VERB
用螺栓固定；閂上
When you bolt one thing to another, you fasten them firmly together, using a bolt.
例句
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夾上，安全帶很容易就可以系好。
Bolt the components together...
把元器件組裝在一起。
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N-COUNT
（門、窗的）金屬插銷，閂
A bolt on a door or window is a metal bar that you can slide across in order to fasten the door or window.
例句
I heard the sound of a bolt being slowly and reluctantly slid open.
我聽到門閂被緩慢而吃力地拉開的聲音。
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VERB
閂上（門、窗）
When you bolt a door or window, you slide the bolt across to fasten it.
例句
He reminded her that he would have to lock and bolt the kitchen door after her.
他提醒她,在她走后他得把廚房的門上鎖并閂上。
...the heavy bolted doors.
緊鎖的大門
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VERB
（常指人或動物因受驚嚇）迅速逃跑，逃竄
If a person or animal bolts, they suddenly start to run very fast, often because something has frightened them.
例句
The pig rose squealing and bolted...
那頭豬突然嗷嗷叫著狂奔起來。
I made some excuse and bolted for the exit.
我編了個借口后便向出口沖去。
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VERB
狼吞虎咽
If you bolt your food, you eat it so quickly that you hardly chew it or taste it.
例句
Being under stress can cause you to miss meals, eat on the move, or bolt your food.
人在壓力之下有時會吃不上飯，或邊走邊吃，或是匆匆吃上幾口。
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N-COUNT
一道（閃電）
A bolt of lightning is a flash of lightning that is seen as a white line in the sky.
例句
Suddenly a bolt of lightning crackled through the sky.
突然一道閃電劃破長空。
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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.
例句
...bolts of black silk.
成匹的黑絲綢
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VERB
（蔬菜）生長過快，結實過早（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.
例句
If the soil dries out the plants may bolt.
如果土壤過干，植株可能會過早結實。
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PHRASE
突然逃跑；慌忙逃竄
If someone makes a bolt for somewhere, or makes a bolt for it, they make a sudden escape.
例句
His father kept a tight grip on his collar in case he should make a bolt for the door.
他的父親緊緊抓住他的衣領，防止他奪門而逃。
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PHRASE
晴天霹靂；出人意表；令人大吃一驚
If a piece of news comes like a bolt from the blue, it is completely unexpected and very surprising.
例句
The company decided to appoint a Japanese manager as president of the company. The decision came as a bolt from the blue.
公司決定任命一位日籍經理擔任總裁。這個決定太出乎意料了。
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PHRASE
挺直地；筆直地
If someone is sitting or standing bolt upright, they are sitting or standing very straight.
例句
When I pushed his door open, Trevor was sitting bolt upright in bed.
當我推開特雷弗的房門時，他正腰桿筆直地坐在床上。