翻译以下段落 This Thursday is Thanksgiving Day. The writer O. Henry 欧 ·亨利 called it the one day that is purely American. Thanksgiving is not a religious holiday. But it has spiritual meaning. Some Americans attend religious services on the day before Thanksgiving, or on Thanksgiving morning. Others travel long distances to be with their families. They have a large dinner, which is the main part of the celebration. For many Americans, Thanksgiving is the only time when all members of a family gather. The holiday is a time of family reunion. Thanksgiving week is generally one of the busiest travel times of the year. Many Americans who usually visit family and friends by plane are driving shorter distances instead this week. Some mental-health experts say the attacks have frightened people. They say people feel safer and happier close to home.