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（220字）
帮助坏人做坏事，例抗战时期，有不少汉奸为虎作伥，残害百姓，令人切齿。
During the Japanese occupation，quite a number of quislings worked for the enemy to oppress the people．Such people are vilely condemned．