一个HolidayEvent是一个类型的事件，描述一个节日，如感恩节或圣诞节。
A HolidayEvent is a type of event that describes a holiday, such as Thanksgiving or Christmas.
如果你今年已经做了一些罐装或冷冻食物，做了自制的果酱或果冻，果实种了许多种蔬菜，那么现在是时候把它们用于感恩节或是圣诞节晚餐上了。
If you have done some canning or freezing this year, made homemade jams or jellies, or grown various types of vegetables, now is the time to serve them up at your Thanksgiving or Christmas dinner.
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