掌握真凭实据 meaning in Chinese

get hold of a mass of solid evidence against

Everybody knows you are the most selfish , heartless creature in existence : and i know your spiteful hatred towards me : i have had a specimen of it before in the trick you played me about lord edwin vere : you could not bear me to be raised above you , to have a title , to be received into circles where you dare not show your face , and so you acted the spy and informer , and ruined my prospects for ever
“你还是少费心思发表长篇大论了， ”乔治亚娜回答说， “谁都知道你是世上最自私最狠心的家伙，我明白你对我有刻骨仇恨，我掌握真凭实据。你在埃德温维尔勋爵的事情上，对我耍了花招。你不能容忍我爬得比你高，获得贵族爵位，被你连面都不敢露的社交圈子所接纳。