It seems there had been an election;a signal victory had been won;the city had been swept back into line by a resistless besom of ballots. 看来进行了一次选举，他们赢得了重大的胜利，一柄势不可挡的选票扫帚已把这个城市扫回进他们的联盟里。
The functions of relevant organs such as the public security,customs,forestry,posts and telecommunications,railway,civil aviation and other transport departments have been brought into full play,culminating in a signal victory in the battle against drugs. 全国公安、海关、铁路、交通、民航、林业、邮电等有关部门，充分发挥各自职能，缉毒成效显著。
A red light is usually a signal of danger. 红灯通常是危险的信号。
a signal victory, success, failure, etc 极大的胜利﹑ 成功﹑ 失败等.
The victory was a signal for wild celebration. 这次胜利是盛大庆祝活动的信号。
The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。