false key meaning in English

备用钥匙
活键

My bank was robbed last night, sir, with a false key .
昨天夜间我的银行遭到抢劫，先生，用的是一把另配的钥匙。
They will sneak down from northards , along the fence , at midnight exact , with a false key , and go in the nigger s cabin to get him
他们定在半夜整沿着栅栏，从北边偷偷摸进来，带着私造的钥匙，打开黑奴的小屋，将他盗走。
" a pane of glass out , " continued the count , " a dark lantern , a bunch of false keys , a secretary half forced - it is tolerably evident " -
“玻璃窗划破了一格， ”伯爵又说， “一盏夜光灯，一串假钥匙，写字台的抽屉被撬开了一半这已经是够明显的啦”