Over the past 22 years, Ren Jianguo has carried on volunteer work to protect thousands of wild ducks on the Changbai Island in Jilin.

在过去的22年里，任建国参加了志愿者工作，保护了吉林长白岛上成千上万的野鸭。

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Barbara, on the other hand, has missed the excitement of her profession and does not feel she would be satisfied doing volunteer work.

另一方面，芭芭拉已经感受不到职业带来的兴奋，做志愿者工作也满足不了她。

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They might organize some activities for young people which provide them with challenges, like rock climbing, camping, volunteer work and so on.

他们可能会组织一些活动，为年轻人提供挑战，如攀岩，野营，志愿者工作等。

youdao

I will volunteer myself to work on extra projects too.

我也会主动提出参与更多的项目。

I want to 实战 - SpeakingMax英语口语达人

The recall group acknowledged a month ago that it was having difficulties raising money and had to rely on a mostly volunteer work force.

NPR: Recall Bid Against Ariz. Sheriff Faces Tough Odds

Taking time out from some volunteer work on Martin Luther King Day, Clinton insisted Monday he has high hopes.

CNN: Clinton To Meet With Netanyahu Today - 01-19-98

But as the years have passed and I have become involved with braille-related volunteer work on various committees of the Braille Authority of North America (BANA) and the International Council on English Braille (ICEB), I have come to realize an even greater satisfaction, based upon a deeper understanding of the importance of braille in the lives of blind men and women.

WHITEHOUSE: Providing Literacy for Informed Citizenry through Braille | The White House