distend-cosmic

例句：

1. 1. The distended cosmos is a wonder to behold.
   膨胀的宇宙是一个令人惊叹的景象。
2. 2. The cosmic background radiation has been studied for decades.
   宇宙背景辐射已经研究了几十年。
3. 3. The cosmic microwave background is the first thing we see when we look up at the night sky.
   宇宙微波背景是我们在仰望夜空时首先看到的。