activist

n. 活动分子,积极分子

On the issue of industrial pollution, the environmental activist plead with the government not to soft-pedal.

自然环境保护活动分子请求政府不要对工业污染问题采取低调态度。

The leave-wing group packed the general purpose committee with activist.

右派集团将他们的积极分子塞进一般目的委员会。