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a bolt of lightning
A bolt of lightning struck the old oak tree.
一道闪电击中了那棵老橡树。
闪电
先理解核心含义，再看它在真实句子里的用法。
闪电
a flash of lightning, especially one accompanied by thunder
A bolt of lightning struck the old oak tree.
一道闪电击中了那棵老橡树。
一种通常为金属的紧固件,由带螺纹的圆柱体构成,一端有较大的头部,可插入无螺纹孔至头部,另一端用螺母拧紧；重型机械螺丝。
A (usually) metal fastener consisting of a cylindrical body that is threaded, with a larger head on one end. It can be inserted into an unthreaded hole up to the head, with a nut then threaded on the other end; a heavy machine screw.
筛子,尤其是用于磨粉和面粉筛选的长细筛；筛粉机。
A sieve, especially a long fine sieve used in milling for bolting flour and meal; a bolter.
闪电(伴随雷声的放电)
a discharge of lightning accompanied by thunder
与插销相关的含义
Latch-related senses
A bolt of lightning struck the old oak tree during the storm.
风暴中，一道闪电击中了那棵老橡树。
We saw a bright bolt flash across the sky last night.
昨晚我们看到一道明亮的闪电划过天空。
Thunder usually follows a bolt of lightning.
雷声通常紧随着闪电而来。
A bolt of lightning struck the old oak tree.
一道闪电击中了那棵老橡树。
指完全出乎意料的事情。
The news came as a bolt from the blue.
这个消息犹如晴天霹雳。
Not this
I saw bolt in the sky.
Use this
I saw a bolt in the sky.
“bolt”作为可数名词，前面需加不定冠词a。中文无冠词，易漏用。
Not this
A bolt lightning hit the tree.
Use this
A bolt of lightning hit the tree.
“闪电”的正确表达是“a bolt of lightning”，不可省略介词of。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一道闪电
A bolt of lightning lit up the dark sky.
一道闪电照亮了黑暗的天空。
闪电
The lightning bolt struck the old oak tree.
闪电击中了那棵老橡树。
突然的闪电
A sudden bolt flashed across the horizon.
一道突然的闪电划过地平线。
晴天霹雳（意外事件）
His resignation came as a bolt from the blue.
他的辞职犹如晴天霹雳。
被闪电击中
The barn was struck by a bolt of lightning.
谷仓被闪电击中。
像闪电一样快
He ran out of the room like a bolt.
他像闪电一样跑出了房间。
晴天霹雳；意外事件
The news of his resignation came as a bolt from the blue.
他辞职的消息犹如晴天霹雳。
笔直地
She sat bolt upright when she heard the noise.
听到响声，她一下子坐得笔直。
冲向；急忙逃向
The cat made a bolt for the door when it saw the dog.
猫看到狗时急忙冲向门口。
我被一道闪电击中
The lyrics from AC/DC's song 'Thunderstruck' vividly portray the intensity of a lightning strike.
AC/DC歌曲《Thunderstruck》的歌词生动描绘了闪电袭击的强度。
Use bolt naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象闪电如门闩般突然划破天空，伴随雷声。
常见场景：weather、literature、figurative 通常用于描述闪电现象，也常见于比喻用法，如‘晴天霹雳’。在正式和口语中均可使用，没有明显的语域限制。
常用于bolt of lightning（一道闪电）
Dictionary facts from ECDICT, WIKTIONARY.