“要犯”常见的英文表达是 “wanted criminal” 或 “major criminal”。
“wanted criminal” 侧重于指被通缉的罪犯,强调其是被警方等追捕的对象,符合“要犯”常具有的被重点追缉这一特征。例如:The police are offering a reward for information leading to the arrest of the wanted criminal.(警方对提供能导致抓捕这名要犯线索的人给予奖励。)
“major criminal” 强调该罪犯罪行严重、影响大,是重要的犯罪分子。例如:The authorities have identified the major criminal involved in the large-scale drug trafficking case.(当局已经查明了参与这起大规模贩毒案的要犯 。)