Today, in an arc that stretches from the Far East through the Middle East to the streets of cities in Europe and the United States, we face a scourge that has taken innocent lives, scarred communities, and destabilized countries. It is a threat that is constantly evolving, growing, and mutating to counter our fight against it.
如今，从远东到中东再到欧洲和美国城市街头，夺走无辜生命、给社区留下疮痍、动摇国家的灾难比比皆是。这是一个不断演化、增长和突变、让我们很难对付的威胁。