美好回忆只藏在心底
[mĕi hăo huí yì zhĭ zàng zài xīn dĭ]
This means 'beautiful memories are only kept in my heart.' The user wishes to cherish and keep their precious past experiences privately, possibly indicating nostalgia or longing for things gone by. It reflects the idea of personal, deep-seated emotions and treasured recollections that are not openly shared.