宇宙发生说

例句：

1. 1. The Big Bang Theory explains the origin of the universe.
   大爆炸理论解释了宇宙的起源。
2. 2. The Big Bang Theory has been widely accepted by scientists.
   大爆炸理论已被科学家广泛接受。
3. 3. The Big Bang Theory challenges our current understanding of the universe.
   大爆炸理论挑战了我们对宇宙的理解。