Volunteering is generally considered an altruistic activity and is intended to promote goodness or improve the quality of life. The volunteers usually help old people with their shopping or cleaning. Some teach the homeless children to read and write. Others concern about the environment and work on neighborhood clean-up campaigns. And there is no financial gain for the individual.
Nếu bài này quá ngắn hay cộc lốc hoặc sai lỗi chính tả thì mong thông cảm! (Vì mình học tiếng Anh tệ lắm.)