Las Vegas was to star in the nation's first live exercise meant to simulate a terrorist attack with an atom bomb, the test involving about 10, 000 emergency responders.

拉斯维加斯将在该国首次意在模拟核恐怖袭击的实弹演习中扮演主角，该演习将测试约10 000个应急响应设备。

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One week after 77 people in Norway were killed in a bomb attack and a mass shooting, the first funerals and memorial services for the victims have taken place.

在挪威的77人在炸弹爆炸和大规模枪击事件中遇难一星期之后，国家为受害者举行首场葬礼和追悼会。

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The first happened in Uzbekistan, on September 30, 1966 with a blast 1.5 times the strength of the Hiroshima bomb and at a depth of 1.5 kilometers.

第一起是1966年9月30日，在乌兹别克斯坦境内，苏联以1.5倍于日本广岛核爆炸当量的爆炸，在地下1.5千米深的位置堵住了石油泄漏点。

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President Harry Truman announced to the world about the first bomb: "The world will note that the first atomic bomb was dropped on Hiroshima, a military base.

VOA: special.2009.06.14

"The world will note that the first atomic bomb was dropped on Hiroshima,a military base.

VOA: special.2011.06.23

The first atomic bomb has been exploded.

VOA: special.2009.06.14

About 15 minutes later, he was walking back to his friends when the first bomb went off.

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Ms. Brannock was with her sister and brother-in-law near the finish line when the first bomb went off.

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At the time, Rifleman Murphy was carrying Rifleman Daniel Simpson who had been injured by the first bomb.

BBC: Thousands honour repatriated men