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1·It is the first work to systematically summarize battle theory and practice in ancient China, which leads the reform direction of strategy and tactics in the cold weapon age.

它是中国古代系统总结战役理论与实践的开山之作，引领了冷兵器时代战略战术变革的方向。

2·You are cold, shivering, and without a weapon.

您浑身发冷、不住颤抖，而且没有武器。

3·You are cold, shivering, and without a weapon - This adds a complication.

“您浑身发冷、不住颤抖，而且没有武器”—这句话将添加复杂度。

4·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。

5·And in such a way that it became a weapon in the cold war.

这样一来，它会变成冷战中的一件武器。