annul /əˈnʌl/ TEM4 ( annulling, annulled, annuls )

• 1. 

  V-T If an election or a contract is annulled, it is declared invalid, so that legally it is considered never to have existed. 宣布…无效 [usu passive]

  例：

  Opposition party leaders are now pressing for the entire election to be annulled.

  反对党领袖们现在正在迫切要求宣布整个选举无效。