n.活動(dòng)分子；積極分子；激進(jìn)分子

On June 1st thugs abducted and beat up Poddala Jayantha, a journalist and activist. 七月一號(hào)歹徒劫持并暴打了坡達(dá)拉，一位戰(zhàn)地記者和積極活動(dòng)分子。

He's been a trade union activist for many years. 他多年來一直是工會(huì)的積極分子。

積極分子

n.行動(dòng)主義；激進(jìn)主義

n.[哲]觸動(dòng)論