They should be punished.

他们应该受到惩罚。

youdao

If people spit anywhere in public, they should be punished.

如果人们在公众的任何地方吐痰，他们应该受罚。

youdao

Some people think if children do something wrong, they should be punished.

一些人认为如果孩子们做错事情了，他们应该得到惩罚。

youdao

For example, they might agree that every crime or injury should be punished.

VOA: special.2009.09.06

The law of talion, which is essentially the principle that a person should be punished according to the injury they inflicted, it's been decried as a primitive, archaic reflex of the vengeance or vendetta principle.

复仇法，本质上讲述了人应该根据其所造成的伤害,接受处罚的原则，却遭到了谴责，人们认为它是,复仇或仇杀原则原始古老的反映。

耶鲁公开课 - 旧约导论课程节选

Ms. DANA SMESSARD (Student): If students are going to be, like, stupid enough to put, like, inappropriate things on there, then they should be punished for it.

NPR: School District to Police Students' Online Activities

Farmers argued that if they had been fined they should not be punished twice by losing subsidy too.

BBC: Will MEPs scupper greening of EU agriculture?

The club were docked 10 points after entering administration this season and Widdrington says they should not be punished twice.

BBC: Boss Tommy Widdrington welcomes Salisbury City appeal