internal security audit

例句：

1. 1.The company's internal security audit team is responsible for ensuring the safety of its employees.
   该公司的内部安全审计团队负责确保员工的安全。
2. 2. The auditor conducted an internal security audit to identify any potential risks.
   审计员进行了内部安全审计，以识别任何潜在的风险。
3. 3. The internal security audit identified several areas where improvements were needed.
   内部安全审计发现了需要改进的几个领域。