烟花再美只是瞬间情话再多只是敷衍
[yān huā zài mĕi zhĭ shì shùn jiān qíng huà zài duō zhĭ shì fū yăn]
This translates into 'fireworks are beautiful, but only for a moment; even if there are a thousand sweet words, it’s just perfunctory.' Indicating things can be beautiful or sweet on the surface, but not last.