firmly believe

• 认定

firmly believe的用法和样例：

例句

1. While Pyongyang insists the pending launch is a satellite, some experts believe they simply want to test the ICBM.
   尽管朝鲜坚称将要发射的是一颗卫星，但许多专家认定此次发射其实是洲际导弹测试。
2. They believe that it will control speculation and that Britain cannot survive alone.
   此外，他们认定英国无法独立生存。