出典:Wiktionary
volunteering (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/21 06:52 UTC 版)
In general terms, volunteering is the practice of people working on behalf of others or a particular cause without payment for their time and services. Volunteering is generally considered an altruistic activity, intended to promote good or improve human quality of life, but people also volunteer for their own skill development, to meet others, to make contacts for possible employment, to have fun, and a variety of other reasons that could be considered self-serving.
「volunteering」は動詞「volunteer」の現在分詞です