流年的青春指尖划过
[liú nián de qīng chūn zhĭ jiān huà guò]
Translated as 'Years slip away through the fingertips', it metaphorizes the fleeting nature of youthful days as if years passing by quickly just like sands going between fingers. This suggests nostalgia over youth, the rapidity of its passage, and possibly lost opportunities of one’s most vigorous period in life.