求翻译：The meaning of the word “volunteer” may be a little different in different countries,but it usually means “one who offers his or her services.”There are many different ways in which people can volunteer,such as taking care of sick people,working in homes for homeless children,and picking up garbage(垃圾)from beaches and parks.Volunteers may work within their own countries or in other countries.They are often people with a strong wish to help those who are less fortunatc than themselves.Volunteers don’t expect any kind of pay.是什么意思？

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