I checked over and over again to assure accuracy.我反复核对以确保准确无误。By cross-checking claims, we will flush out the fraudsters.通过反复核对索赔请求,我们会把欺诈者揪出来的。I had to look twice and cross-check with another file to make sure I hadn't misread it.我得检查两遍,并且还要根据另一份文件来反复核对以确保我没有误读。