big bang hypothesis

例句：

1. 1. The Big Bang Theoryexplains the origins of the universe.
   大爆炸理论解释了宇宙的起源。
2. 2. TheBig Bang Theory hasbeen a popular topic inastrophysics for decades.
   大爆炸理论在天体物理学中几十年来一直是一个热门话题。
3. 3. The Big BangTheory suggests that the universe began as asingle point of infinite density and energy.
   大爆炸理论表明，宇宙最初是一个无限密度和能量的点。