This information has been classified top secret.

这一情报被归为绝密类别。

《牛津词典》

In 2005, the U.S. classified these chicken barns as part of the nation's 'critical infrastructure,' giving them a kind of top-secret status.

2005年，美国把这些养鸡场列为国家“重要基础设施”的一部分，并赋予了它们相当于最高机密的地位。

youdao

The Homeland Security Department still has problems handling classified top secret intelligence information, according to a new report from the department’s Office of the Inspector General.

根据美国国土安全部总监办公室的一份报告显示，国土安全部在处理机密级高度保密情报信息方面仍存在问题。

youdao

Not the National Security Agency, which is conducting a pilot of 100 Motorola smartphones running the Android OS that it says are already good enough for its employees to make top-secret and classified phone calls from the field.

FORBES: Connecting marketers to the Forbes audience. What is this?

If you want to deal with classified, top secret information, you have to have one of these buildings.

NPR: Intelligence Failures In 'Top Secret America'

Of these reports concerning Cuba, the majority were classified and marked Secret or Top Secret.

CENTERFORSECURITYPOLICY: Cuban Intelligence Operations in the US