death rattle (alsodeath-rattle)

• 1.  

  N-SING（单数型名词） If you say that one thing is the death rattle of another, you mean that the first thing is a sign that very soon the second thing will come to an end. 临终哀鸣 [journalism]

  例：

  His rhetoric sounds like the death rattle of a fading leadership.

  他的华丽词藻听起来像是预示着将要倒台的临终哀鸣。