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Nuclear Weapon
核武器
Do you know what the most dangerous weapon in the world is?
你知道世界上最危险的武器是什么吗？
Of course, every weapon is dangerous.
当然，每种武器都很危险。
But a nuclear weapon must be the most dangerous and powerful weapon.
但核武器一定是最危险、最具威力的武器。
A nuclear weapon is a kind of bomb.
核武器是一种炸弹。
It uses nuclear reactions to release energy.
它利用核反应释放能量。
During World War II, American scientists developed a bomb using nuclear power.
二战期间，美国科学家研制出了利用核能的炸弹。
And The United States dropped nuclear bombs on two cities of Japan.
美国在日本的两座城市投下两枚原子弹。
What happen next?
接着发生了什么？
Over 120,000 people were killed.
超过十二万人被杀。
And these two cities were totally destroyed.
这两座城市完全被摧毁。
Now everyone is afraid of nuclear weapons.
现在每个人都害怕核武器。
