pregalaxy

例句：

1. 1. The discovery of a new planet in the pregalaxy has sparked excitement among astronomers.
   在银河系中发现一个新行星，引起了天文学家们的兴奋。
2. 2. The study of the pregalaxy is crucial for understanding the origins of life on Earth.
   研究银河系对于理解地球上生命的起源至关重要。
3. 3.In the pregalaxy, there are billions of stars and galaxies, each with its own unique characteristics.
   在银河系中，有数十亿颗恒星和星系，每个都有其独特的特征。