黑白回忆里的黑白承诺黑白相册里的黑白背影
[hēi bái huí yì lĭ de hēi bái chéng nuò hēi bái xiāng cè lĭ de hēi bái bèi yĭng]
Describing black-and-white memories, black-and-white promises, as well as black-and-white figures found in albums; evokes classic images and feelings related to the past, possibly indicating that although times have changed, certain vows or impressions made back then remain untouched by the passage of time. Also implies deep sentimentality and respect for history.