The prison was designed to hold up to 336 prisoners.这座监狱原计划关押336名囚犯。
However the average population was only about 270.然而，平均人口只有270人左右。
Although there were several notorious inmates, such as Al Capone, most of the inmates were not well-known.虽然有几个臭名昭著的囚犯，如Al Capone，大多数囚犯并不出名。
Many had tried to escape from other prisons or were considered violent.许多人试图逃离其他监狱或被认为是暴力的。
If a man did not behave at another prison, he could be sent to Alcatraz.如果一个人在其他监狱不守规矩，他可能会被送到恶魔岛。
At Alcatraz there was just one inmate in each prison cell.在恶魔岛，每个牢房只有一个囚犯。
Prison life at Alcatraz was highly structured and boring.恶魔岛的监狱生活是高度结构化和枯燥的。
It was designed to teach prisoners to follow rules.它被设计用来教囚犯遵守规则。
They had four rights: food, clothing, shelter and medical care.他们有四项权利:食物、衣服、住所和医疗
Everything else was a privilege that had to be earned.其他一切都是必须争取的特权。。
Privileges included working, visits from family members, and access to the prison library.特权包括工作、家庭成员来访和进入监狱图书馆。
There were also activities such as painting and music.还有绘画和音乐等活动。
Once a prisoner showed that he could follow the rules, he could be transferred back to another prison to finish his sentence.一旦一个囚犯表现出他可以遵守规则，他就可以被转回另一个监狱完成他的刑期。
Alcatraz was used as a prison for 29 years.恶魔岛曾被用作监狱长达29年。
During that time, no prisoner escaped successfully.在这段时间里，没有一个囚犯成功越狱。
There were 14 escape attempts, involving 36 prisoners.有14次越狱企图，涉及36名囚犯。
Twenty-three were caught alive, and six were shot and killed.23人被活捉，6人被击毙。
2 men tried to escape twice.两名男子试图逃跑两次。
2 drowned and 5 were listed as missing and presumed drowned.2人溺亡，5人失踪，估计已溺亡。
The most violent escape attempt occurred on May 2nd, 1946 when 6 prisoners tried to escape.最暴力的越狱企图发生在1946年5月2日，当时6名囚犯试图越狱。
That event is called the "Battle of Alcatraz."这个事件被称为“恶魔岛之战”。
While it was in use, Alcatraz held some of the most notorious criminals in American history, such as Al Capone.在使用期间，恶魔岛关押了一些美国历史上最臭名昭著的罪犯，比如Al Capone。
Al Capone was a crime boss who built his career in Chicago.艾尔·卡彭(Al Capone)是一名犯罪团伙头目，在芝加哥开创了自己的职业生涯。
The prison was finally closed in 1963.这座监狱终于在1963年关闭了。
It was closed because it was too expensive to operate.因为运营成本太高，所以关闭了。
