N-COUNT
共犯;同谋;帮凶
Someone's accomplice is a person who helps them to commit a crime.
例句
The gunman escaped on a motorcycle being ridden by an accomplice.
持枪歹徒坐上一辆由同伙驾驶的摩托车逃逸。
His accomplice was arrested after a high-speed police chase.
经过警方的一番飞车追逐，他的同伙遭到逮捕。