
bolt
词源
源自古英语 'bolt',最初指箭或门闩,可能与古诺尔斯语 'bolti'(螺栓)有关。
noun
❶ 金属制的门栓或插销,用于固定门窗防止被打开。
“She slid the bolt across the door to lock it.”
(她推上门闩锁住了门。)
“The bolt on the window was rusty and hard to move.”
(窗户上的插销生锈了,很难移动。)
❶ 螺栓,一种带有螺纹的金属紧固件,通常与螺母配合使用。
“He tightened the bolts on the machine with a wrench.”
(他用扳手拧紧了机器上的螺栓。)
“The bolts holding the shelf came loose over time.”
(固定架子的螺栓随着时间松动了。)
❶ 闪电,尤指突然而明亮的闪电。
“A bolt of lightning lit up the night sky.”
(一道闪电照亮了夜空。)
“The storm brought several bolts of lightning.”
(暴风雨带来了几道闪电。)
verb
❶ 迅速逃跑或突然移动,通常因为害怕或惊讶。
“The horse bolted when it heard the loud noise.”
(马听到巨响后突然逃跑了。)
“He bolted out of the room when he saw the spider.”
(他看到蜘蛛后迅速跑出了房间。)
❶ 用螺栓固定或紧固某物。
“He bolted the shelves to the wall for stability.”
(他用螺栓将架子固定在墙上以增加稳定性。)
“Make sure to bolt the wheels securely to the frame.”
(确保将轮子牢固地用螺栓固定在框架上。)
常见短语
a bolt from the blue — 晴天霹雳,指完全出乎意料、令人震惊的事件。
“The news of his resignation came as a bolt from the blue.”
(他辞职的消息如同晴天霹雳。)
bolt upright — 突然笔直地坐起或站起,通常因为惊讶或警觉。
“She sat bolt upright when she heard the strange noise.”
(听到奇怪的声音时,她突然笔直地坐了起来。)