new threat的用法和样例：
例句
- Every country must invest in health and build its capacity to prevent new and existing threats by strengthening public health systems.
每个国家必须投资于卫生并通过加强公共卫生系统建设自己预防新威胁和已有威胁的能力。 - The deployment of missile defenses is an essential element of our broader efforts to transform our defense and deterrence policies and capabilities to meet the new threats we face.
部署导弹防御系统是我们调整防御和威慑政策以及增强应对新威胁能力的众多努力之一。
