First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.

首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。

《柯林斯英汉双解大词典》

Russia's Nerpa nuclear attack submarine, damaged in a fatal accident during tests in November last year, has successfully passed final trials, a Pacific Fleet spokesman said on Monday.

俄罗斯太平洋舰队发言人周一表示，在去年11月测试中遭遇死亡事故的Nerpa攻击型核潜艇已经成功通过了最后的测试审核。

youdao

President Barack Obama told delegates Tuesday that the risk of a nuclear attack has risen.

奥巴马对星期二前来的代表们说，核袭击的风险已经在上升。

youdao

In a real nuclear attack, hundreds of thousands of people would have to be decontaminated from radiation.

VOA: standard.2010.07.21

Today's nuclear threat differs from that of the Cold War, according to U.S.Secretary of State Hillary Clinton, "The threat of nuclear war, nuclear attack that we grew up with in the Cold War has diminished.

VOA: standard.2010.04.11

He is expected to press Israel not to carry out its threat to attack Iran's nuclear facilities.

VOA: standard.2009.07.26

Jeong Kim, 39, is a former Navy officer who spent seven years aboard nuclear attack submarines.

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Advocates of Mutual Assured Destruction insisted on leaving civilian populations totally vulnerable to nuclear attack.

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Then, aiming upward, you can shoot out of the water like a nuclear attack sub.

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