英译汉 (1) federal holiday (2) grand parade (3) dress up (4) cultural interchange (5) legal holiday (6) core cultural value When in Rome, do as the Romans do. Thanksgiving is a holiday that is celebrated primarily in the US and Canada. Valentine's Day on February 14 is celebrated in various American and European countries. Halloween activities include making pumpkin lanterns, trick-or-treating, playing pranks, having costume parties, visiting haunted attractions, telling scary stories, and watching horror movies.