After the detonation of nuclear bombs at the end of world War II, the world moved deeper into the atomic age and the nuclear standoff between the superpowers.

在第二次世界大战末期引爆核弹之后，世界步入原子时代，深深陷入超级大国之间的核对峙之中。

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Less than one month after the test at Alamogordo, the United States dropped atomic bombs on two Japanese cities.

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India and Pakistan declared themselves nuclear weapon states when they tested atomic bombs in 1998.

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This is the stuff that atomic bombs and nuclear reactor fuel are made from.

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Japan agreed to surrender on August 15, 1945, after U.S. planes dropped atomic bombs on the cities of Hiroshima and Nagasaki.

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