确信的

例句：

1. 1. I believe that the earth revolves around the sun.
   我相信地球绕着太阳转。
2. 2. She believes in the power of education to change lives.
   她相信教育的力量可以改变生活。
3. 3. He believed that his theory would prove correct.
   他相信他的理论会证明是正确的。