美国最重要的节日是什么呀？

我在美国，对这里的人来说圣诞节是最重要的，通常会放假3天，学生至少方一个礼拜。

感恩节，国庆，新年，放假一天。
剩下的节虽然庆祝，却不放假。

Additional Popular USA Holidays, Celebrations, Dates:
February 2 [every year]: Groundhog Day
February 12 [every year]: Lincoln's Birthday
February 14 [every year]: St. Valentines Day
February 22 [every year]: Washington's Birthday (traditional)
March 17 [every year]: St. Patrick's Day
April 1 [every year]: April Fool's Day
March 25, 2005 [April 14, 2006]: Good Friday
March 27, 2005 [April 16, 2006]: Easter Sunday
April 22 [every year]: Earth Day
April 27, 2005 [April 26, 2006]: Administrative Professionals Day (National Secretary's Day)
May 5 [every year]: Cinco de Mayo
May 8, 2005 [May 14, 2006]: Mother's Day [2nd sunday in May]
May 21, 2005 [May 20, 2006]: Armed Forces Day [3rd saturday in May]
June 14 [every year]: Flag Day
June 19, 2005 [June 18, 2006]: Father's Day [3rd su