转眼流年只为一眼红颜
[zhuăn yăn liú nián zhĭ wéi yī yăn hóng yán]
'A glance through fleeting years just to look at a pretty face', which describes longing admiration for beauty or someone special. Even a short gaze can create a memorable experience lingering in memory for a long time, possibly highlighting first crushes or love at first sight moments.