:“冬至”用英文怎么说？

　　The origins of this festival can be traced back to the yin and yang philosophy of balance and harmony in the cosmos. After this celebration, there will be days with longer daylight hours and therefore an increase in positive energy flowing in.

　　原来是和“阴阳”相关。人们认为，过了这一天，白昼一天比一天长了，是一个节气循环的开始，“阳”气逐渐回升，因此算是个吉利的日子。