What does the expression swan song generally refer to

问题描述:

What does the expression swan song generally refer to

什么是表达一般指天鹅之歌

Swan song refers to a last or farewell appearance or the last work before death.
中文就是临死哀歌之类,我觉得应该是形容那种以为很拉风但偏偏快要完蛋的人或事物.