某年某天或只是某个瞬间
[mŏu nián mŏu tiān huò zhĭ shì mŏu gè shùn jiān]
'某年某天或只是某个瞬间' translates as 'A certain year, a certain day, or just a fleeting moment'. This phrase connotes reminiscence of specific memories from particular times in one’s life, possibly signifying nostalgia or the appreciation of fleeting moments.