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当某人记不住某事时
![to [draw] a blank definition and meaning](https://cdn.langeek.co/photo/29665/original/?type=jpeg "to [draw] a blank definition and meaning")
What is the origin of the idiom "draw a blank" and when to use it?
The idiom "draw a blank" likely originated from the idea of drawing or selecting a blank, unmarked ticket or card in a game of chance or lottery, which typically results in not winning a prize. This expression is commonly used when someone is unable to remember or provide the information they were hoping for, often in situations where they are expected to provide an answer or explanation.
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![to [draw] a blank definition and meaning](https://cdn.langeek.co/photo/40909/original/?type=jpeg "to [draw] a blank definition and meaning")
What is the origin of the idiom "draw a blank" and when to use it?
The idiom "draw a blank" is believed to have originated in the United States in the 19th century, and may have originally referred to a card game where a player is unable to draw a card they need. It can also be used to describe a situation where someone is unable to come up with ideas or solutions to a problem, despite their best efforts.
