campaigner

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

田径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.

参加保护物权利人认为许多物实验是不必要，这很有道理。

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

参加人不懈努力终于取得了结果，被关押人将于明天获得释放。