That's not an overstatement. As I said, these are only the main ones. There are many others.
你这样说一点也不夸张,我只是说了几个重要的节日,还有很多没有提及呢。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了,比人们想像的要早20,000年。