He's been a trade union activist for many years.

他一直是工会的积极分子。

Activists are increasing in number day by day.

积极分子的人数日益增加。

The downturn is something people here read about in the newspapers, according to Dhanna Singh, a member of the Mazdoor Kisan Shakti Sangathan (MKSS), a union of activists and farmers.

根据德哈那.辛格，一名积极分子与农场主联合会MKSS成员的说法，经济低迷只是这里的人们从报纸读到的谈资而已。

I do not focus on the Limits to Growth world model because I want to pick on its potent political implications (the first version did, after all, inspire a generation of antigrowth activists).

我之所以把焦点放在“增长的极限”这个模型，不是因为我想对它的那些强有力的政治内涵做什么挑剔（毕竟，它的第一个版本给予一代反增长的社会活动积极分子以灵感）。