prime culprit

• [法] 首犯； 罪魁； 正犯

prime culprit的用法和样例：

例句

1. The emerging nations have been the victims rather than the culprit.
   新兴国家成为受害者而不是罪魁。
2. According to Shao Yiming experience, length and format of the application is often the culprit defeated.
   根据邵一鸣的经验，申请书长度和格式往往是败阵的罪魁。