They hold together for collective security.

他们为了共同安全而团结在一起.

《简明英汉词典》

Step five: looking for witnesses, and signed a collective security.

第五步: 寻找目击证人, 并集体签字担保.

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Theory of collective security is a postwar concept of security.

集体安全理论是战后出现的一种安全构思.

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Has organized the member nation with the collective security treaty to discuss this question.

已与集体安全条约组织成员国谈论过这一问题.

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