“昙花一现”，汉语成语，比喻美好的事物或景象出现了一下，很快就消失（vanish as soon as it appears），与英文习语“a flash in the pan”意思相近，表示“someone or something whose success or popularity is short-lived”。
- 很可惜，他们的成功只是昙花一现。
Sadly, their success was just a flash in the pan. - 这家新成立的创业公司引起了很大轰动，但它最终只是昙花一现，仅仅两年后就倒闭了。
The new startup created a lot of buzz, but it ended up being just another flash in the pan, out of business after just two years. - 他们不过是历史舞台上昙花一现的人物。
They are merely passers-by on the stage of history.
