YOU SAID:

That it is like a flash in the pan

INTO JAPANESE

それは一瞬の出来事のようなものだ

BACK INTO ENGLISH

It's like a momentary event.

INTO JAPANESE

それは一瞬の出来事のようです。

BACK INTO ENGLISH

It seems to happen in an instant.

INTO JAPANESE

それは一瞬のうちに起こるようです。

BACK INTO ENGLISH

It seems to happen in an instant.