The organisers of the demonstration concede that they hadn't sought permission for it.

游行示威的组织者承认他们并未申请批准这次活动。

...his campaign organisers who are canvassing for last minute support.

为他作最后一刻游说以获取支持的竞选组织者

She was a good organiser.

她是个出色的组织者。