a nine days wonder的用法和样例：
- As a pop star she was a nine days' wonder: she only made one successful record.
- I'll never forget that strange happening.That was a nine days wonder.
- I can't tell you the shock it was to Mrs Hargraves, and a nine days' wonder in the village.
- The satellite that landed in their garden made the family a bit of a nine days' wonder, but no one remembers their name now.
- A nine days worder is usually forgotten easily.