| 词汇 | a light bulb goes off/on |
| 释义 | a light bulb goes off/on chiefly US, informal ◊ When a light bulb goes off/on (in your head), you suddenly understand something or have a great idea.突然明白；恍然大悟；灵光一现。 After thinking about the problem for several days, a light bulb went off in her head, and she knew how to solve it.这个问题，她思考了几天之后突然想出了办法，知道该如何解决了。 light bulb |
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