求翻译：像粽子和端午节这样的传统习俗已经在中国留传了几百年。它包含了中国的传统文化及其深厚的历史底蕴，使后人对中国有了更进一步的了解。而随着时代的发展，社会的进步。我们不但要完整的保留这些传统还要将它进行晋升。取其精华，去其糟迫。是什么意思？

Traditional practices such as dumplings and the Dragon Boat Festival has in Chinese hands for hundreds of years. It contains the history of China's traditional culture and its deep heritage, so that future generations have a further understanding of China. With the development of the times and social progress. Not only do we retain these traditions to complete it should also be promoted. Take its essence, its worst overcrowding.