translation.en: Now I defy you to come up with any other physical activity -- and please don't say golf -- something that actually is hard -- where geriatrics are performing as well as they did as teenagers.
translation.zh: 现在我看大家能不能想出任何其他的体育运动 -- 请不要说高尔夫 -- 一些确实非常困难的运动 -- 在什么运动中老人与 他们年轻时表现的一样好。