Question: Which dishes are essential for festivals? Analysis: When answering, you can list some traditional dishes that appear in specific festivals. Introduce the characteristics of these dishes and their significance in the festival. You can also discuss how these traditional dishes reflect local customs and cultural characteristics.

问题：哪些菜肴是节日必备的？ 解析： 回答时，可以列举一些在特定节日中会出现的传统菜肴。 介绍这些菜肴的特色和它们在节日中的意义。还可以谈论这些传统菜肴如何反映了当地的风俗习惯和文化特色。