"在春节用英语怎么说"可以翻译为 "How to say Spring Festival in English".
If you want a more concise answer, "Spring Festival" is the direct translation of "在春节" in English. However, if you want to include the cultural significance and traditional customs of the festival, you could say "Spring Festival" along with other related expressions such as "Chinese New Year", "Lunar New Year", or "the festival of reunion".
