The government insists that 'prison works' and plans to introduce a tougher sentencing policy for people convicted of violent crime.

政府坚持认为“关押有效”，并计划对暴力犯罪者实行更严厉的判刑政策。

《牛津词典》

Among Hamada's many public works projects, the biggest benefits had come from the prison, the university and the Aquas aquarium, with its popular whales, they said.

他们还补充，在滨田许多的基建项目中，监狱、大学和那拥有可爱鲸鱼的水族馆，是最赚钱的。

youdao

Some people argue that the system works: that crime has fallen in the past two decades because the bad guys are either in prison or scared of being sent there.

一些人辩称这个系统很有效：在过去的二十年里犯罪率下降了，因为坏人不是已经被抓就是很害怕被抓。

youdao

Of course, prison works to the extent that those who are incarcerated cannot commit further crimes while they are banged up.

ECONOMIST: Prisons

Prison works to the extent that anyone in prison cannot commit a crime on the outside while they're in - absolutely fine.

BBC: News Online

Whether or not prison works as a crime-fighting tool, how much further down the road of ever more frequent imprisonment can America go?

ECONOMIST: Prisoners