national security concerns

• 国家安全问题

national security concerns的用法和样例：

例句

1. Obama and his supporters had hoped his recent trip to the Middle East and Europe would bolster his credentials in foreign policy and national security issues.
   奥巴马阵营本来希望他最近出访中东和欧洲地区能够为他在处理外交政策和国家安全问题的能力方面树立良好的形象。