authority 做单数和复数区别的问题，请教大家。

Question

authority 做单数和复数区别的问题，请教大家。

Answer 1

单数：权威； 权力； 学术权威；
权力；权限；职权 Authority is the right to command and control other people.
Local police chiefs should re-emerge as figures of authority and reassurance in their areas.
各地警察局局长应当重树其维护辖区安定的执法者形象。
The judge had no authority to order a second trial.法官无权进行二次审判。

复数：当权者当局;官方;当权者
The authorities are the people who have the power to make decisions and to make sure that laws are obeyed.
This provided a pretext for the authorities to cancel the elections.
这给当局取消此次选举提供了借口。