Refers to the sorrowful separation of a married couple, often implying an irreversible parting.
他们曾经是众人羡慕的一对，却不料最终还是走到了离鸾别鹄的地步，令人唏嘘不已。
They were once an envied couple, but unexpectedly, they eventually reached the point of marital separation, which was truly regrettable.
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