As Beijing has presented the world with a successful Olympics, volunteers at the Games have also impressed all the participants with their hard work and friendly smiles. Our reporter Liu Yan reviews the work of the volunteers over the past two weeks.

During the Olympics, spectators cheered every day to encourage their favorite athletes. But volunteers in the venues had no such chance. They have been working rather than enjoying the sporting action.

21-year-old Song Yang is one of the volunteers. The college student worked in the media reception desk in the National Aquatics Center, or the Water Cube.

The desk is only 30 meters away from the media seats. But Song Yang has never been there and watched competitions.

"We are stationed outside the venue, so we cannot watch the competitions. We can just hear the cheers, which are enough for us. Our responsibility is to ensure the smooth running of media services and for me, providing good service is the greatest thing."

In the National Stadium or the Bird's Nest, Zhu Jinghua stands in the media seats area. As a volunteer there, she has to send competition results to journalists, running back and forth many times a day. It's a tough job, but Zhu Jinghua says she wants to build a good image for Olympic volunteers through her efforts.

"Volunteers should be passionate, optimistic, open and nice to friends from all over the world. We want to share the Olympic enthusiasm with our friends. "

Apart from college volunteers, senior citizens have also contributed to the Olympics. 71-year-old Hao Tong, who works in the Main Press Center, says working for the event is an honor because the Olympics is an opportunity for China to show its new image to the world.

"I believe it's a great thing for our country to host the Olympics. In the past, we once had just had one Chinese athlete attending the Olympics, it was so sad. Now everything has changed."

No matter how old they are, no matter where they work, the Olympic volunteers have touched the world with their smiles, hard-work and dedication.

Liu Yan, CRI news.