Swimming is good but, like others, up to a point.

來源: 7grizzly 於 2023-01-13 10:56:58 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (97 bytes)

There is the cost of adaptation. See https://www.strongfirst.com/the-cost-of-adaptation/

請您先登陸，再發跟帖！