We have about a hundred, 120,000 others that don't appear to function every day, but represent this archival history of how we used to work as a species going back tens of thousands of years.
此外还有大概12万个 它们貌似不是每天都发挥功能 但它们代表了我们这个物种在这千百万年来如何存在 的一份档案