How many people can each grand prize winner take on the free trip?

每位大奖得主在免费旅行中可以带多少人？

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It helps them find work and housing, and even offers a free trip to the dentist.

帮助他们找工作和住处，甚至会提供一趟看牙医的免费车程。

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If someone like yourself volunteers, they receive a free round trip ticket to be used within one year.

自愿的人可以得到一张一年内有效的免费往返票。

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Visitors can also find a link to the Fort Raleigh National Historic Site, with information about a free electronic field trip for students.

VOA: special.2009.08.17

Along with the award, the winners also got a free trip to New York City and Los Angeles,California, to attend screenings of their videos.

VOA: special.2009.10.02

The trip was free. Each trip was the same.

VOA: special.2010.07.01

Calculate carbon offsets for your car, plane or train trip with the free United Nations Environment Programme Carbon Calculator iPhone app.

BBC: How big is your carbon footprint?

The Metro light rail system can take Al in a nearly emissions-free trip straight from the airport to the U.S. Capitol Building.

FORBES: Is Al Gore A Fossil-Fuel Industry Mole?

Adam earned a free trip to France, courtesy of the watchmaker, by winning a national clay-court tournament last month in Delray Beach.

WSJ: One Kid's Personal Tennis Academy