corned beef and cabbage 是 St. Patrick's Day 必吃的吗? --
http://en.wikipedia.org/wiki/St._Patrick%27s_Day
http://en.wikipedia.org/wiki/St._Patrick%27s_Day_in_the_United_States
http://allrecipes.com/recipe/corned-beef-and-cabbage-i/
Video: Corned Beef and Cabbage
Watch how to make this traditional St. Patrick’s Day dish.
http://allrecipes.com/video/161/corned-beef-and-cabbage/detail.aspx?prop24=RR_RelatedVideo