I know now If I understood the what, when, why and how Now it's clear to me what I should have done But hindsight is 20/20, 20/20 vision Now I see it
then what I know now If I understood the what , when , why and how Now it's clear to me What I should have done But hindsight is 20/20 vision Now I see
译文: 乔治班森. 20 20.