时间像只狗说走就走
[shí jiān xiàng zhĭ gŏu shuō zŏu jiù zŏu]
'Time Walks Away As It Sees Fit, Like A Dog That Roams Wherever He Chooses.' Here, time acts unpredictably and arbitrarily. Time flows endlessly without waiting for anyone - just as if wandering aimlessly, which expresses helplessness over its irreversible passage.