annul

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. 宣佈…無傚[usu passive]

Opposition party leaders are now pressing for the entire election to be annulled. 反對黨領袖們現(xiàn)在正在迫切要求宣佈整個選擧無傚。