物品、证据等遗失、损毁而不复存在to be lost or destroyed

• 由于缺乏保护和开发利用的规范,武汉市的许多历史建筑灭失严重。

  Because of a lack of protection and regulation governing development and use, there has been a serious loss of many of Wuhan's historical buildings.

• 大多数情况下,这类案件赃物灭失无法查获追缴。

  In the majority of situations, stolen goods in this type of case are lost, with no prospect of them being found or returned.