问题补充：
如上
答案：
Christmas is the biggest festival in the western world, which people all over the
Christian countries celebrate. It is on the 25th day of each December. Christians
consider it as the birthday of Jesus Christ. But now many customs and habits are
beyond religious meaning, The Christmas season begins five or six weeks before
the exact holiday. There is always a shopping boom during this period. So its
really a happy season for shop owners.
