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Nuclear Weapon
核武器
Do you know what the most dangerous weapon in the world is?
你知道世界上最危險的武器是什么嗎？
Of course, every weapon is dangerous.
當然，每種武器都很危險。
But a nuclear weapon must be the most dangerous and powerful weapon.
但核武器一定是最危險、最具威力的武器。
A nuclear weapon is a kind of bomb.
核武器是一種炸彈。
It uses nuclear reactions to release energy.
它利用核反應釋放能量。
During World War II, American scientists developed a bomb using nuclear power.
二戰期間，美國科學家研制出了利用核能的炸彈。
And The United States dropped nuclear bombs on two cities of Japan.
美國在日本的兩座城市投下兩枚原子彈。
What happen next?
接著發生了什么？
Over 120,000 people were killed.
超過十二萬人被殺。
And these two cities were totally destroyed.
這兩座城市完全被摧毀。
Now everyone is afraid of nuclear weapons.
現在每個人都害怕核武器。
