YOU SAID:
It was a nice moment while it lasted.
INTO JAPANESE
それが続いた中、素敵な瞬間だった。
BACK INTO ENGLISH
It was nice while it lasted a moment.
INTO JAPANESE
それがしばらく続いた中よかったです。
BACK INTO ENGLISH
Good while it lasted for a while.
INTO JAPANESE
良いことがしばらく続いた。
BACK INTO ENGLISH
Lasted for a good while.
INTO JAPANESE
良いしばらくの間続いた。
BACK INTO ENGLISH
It lasted a good while.
INTO JAPANESE
それは良いしばらくの間続いた。
BACK INTO ENGLISH
It lasted a good while.
That didn't even make that much sense in English.