In 1956, when the cold war was at its peak, America deployed a "secret sonic weapon", as a newspaper headline put it at the time.
1956年，当冷战最冷之时，美国使用了“秘密声音武器”，当时一家报纸的头条如此形容。
In 1956, when the cold war was at its peak, America deployed a "secret sonic weapon", as a newspaper headline put it at the time.
1956年，当冷战最冷之时，美国使用了“秘密声音武器”，当时一家报纸的头条如此形容。
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