出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第173页（193字）
形容两者勾结着做坏事，例经过调查之后，才发现他两人狼狈为奸，盗窃公款。
Only after investigations were made was it known that they were working in collusion to steal public funds．