proof positive meaning in English

前车之
确凿的证据

Here is proof positive .
有确实证据。
Here ' s proof positive that i ' m right
可以绝对肯定我是对的。
" i am proof positive that anything is possible in your life
罗伯茨曾经说： “人的一生中什么都可能发生，我就是个铁证。
He says he was at homesick yesterday but i have proof positive that he went to watch the cricket
他说他昨天生病在家，但我有确证可以说明他去看板球赛了。