campaigner

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

田径动反兴奋剂倡道面临信誉问题。

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

参加动人不懈努力终于取得了结果，被关押人将于明天获得释放。

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

参加保护动物权利动人认为许多动物实验是不必要，这很有道理。