Skin somebody alive-(活剥某人的皮)
A：What happened to Pat this morning? I saw him leave the classroom soon after the exam began.
帕特上午怎么了？我见他考试一开始就离开了教室。
B：He was found cheating and was driven out.
他被发现作弊，被老师赶了出来。
A：If the principal caught him cheating, he would skin him alive.
如果校长发现他作弊的话，会活剥了他他的皮。
principal
形容词主要的; 本金的; 最重要的; 资本的
名词本金; 首长，负责人; 主要演员，主角; [法]委托人，当事人