这个英语句子怎么理解？

Question

under / on pain of death，这个介词组为什么理解成违者处si，有什么好的理解吗.om
和under理解什么意思为好

Answer 1

on/under pain of sth 是英语习语，英语释义是 with the threat of having sth done to you as a punishment if you do not obey ,意思是违则受到某种惩罚；违则以…论处。
on/ under pain of death means
if you have to do something under/ on
pain of death, you will be killed if you do not do it. 违令则处死； 违令则会在死亡的威胁下。

Answer 2

under可以表示所处的状况，条件或在进行的过程中。