wonder 作名字讲意思指“奇迹”或“奇观”。习语a nine days' wonder 的字面意思是“一个只持续了九天的奇迹”，喻指“轰动一时即被遗忘的人或物”，有时和“a flash in the pan”同意。

Dialogue:
A: John seems to be in high cotton. He may well become a big shot.
B: I bet my bottom dollar that he won't. He's no more than a nine days' wonder.
A：What's your idea?
B: Many people like him got a flying start but soon disappeared.

翻译：
A：约翰走红起来了，他有可能成为大人物。
B：我敢打赌他成不了大人物，他只不过是昙花一现。
A：那你怎么看？
B：很多像他这样的人只是有个开门红，然后便销声匿迹了。