The young should take active part in volunteer work.

年轻人应该积极参加志愿者活动。

youdao

We spend our free time together going to the movies or to art exhibitions and we both take part in volunteer work.

我们经常一起去看电影、看艺术展览，我们都参加义工活动。

youdao

Retirees who take part in the service might be expected to volunteer, or work part-time in so-called social enterprises.

BBC: Big Society guru urges newly retired people to volunteer

We do see multitudes of youth taking part in causes, such as leaving school and work to volunteer in aid of the 2008 Sichuan earthquake victims, or volunteering to support the 2008 Beijing Olympics or the 2010 Shanghai Expo.

FORBES: Debunking Myths About China's Youth Culture

The propensity of women to work in vital but lower paying fields combined with increased volunteer rates and part-time work relative to men hurts our earnings power.

FORBES: The White House Report On Women: 3 Surprising Insights