campaigner

Athletics’ anti-dope campaigners are faced with a credibility problem.

田径的反兴奋剂倡道者面临信誉问题。

Animal rights campaigners have a point when they say that a lot of animal testing is unnecessary.

参加物权利的人认为许多物实验是不必要的，这很有道理。

The tireless efforts of campaigners have finally borne fruit and the prisoners are due to be released tomorrow.

参加的人的不懈努力终于取得了结果，被关押的人将于明天获得释放。