譯者三難信達雅,這個句子有難度.可以作如下處理
The subject is about change or no eternal thing,ie.,evrything in world fluctuates beyond people's imagination; even rue love easily varies and cannot endure the time.Therehence,the poetry asks us to seize today and enjoy it.
這樣就OK了.翻譯主要是達意,其次追求雅.