If possible, always try to preserve the state of the system for a security expert to review.
如果可能的话，一直保留系统状态以待安全专家检查。
When action is required to preserve our national security, we will act.
一旦需要采取行动保卫我们国家的安全，我们就采取行动。
Access control security strategy is to preserve the legality of the database users.
访问控制策略即保证数据库的访问者其身份的合法性。
Access control security strategy is to preserve the legality of the database users.
访问控制策略即保证数据库的访问者其身份的合法性。
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