元星系

The metagalaxy is a term used to describe the observable universe, which contains an estimated two trillion galaxies.
译：Metagalaxy 这个词用来描述可观测宇宙，它包含了大约两万亿个星系。
Our solar system is just a tiny part of the vast metagalaxy we live in.
译：我们的太阳系只是我们所处的庞大 Metagalaxy 中微不足道的一部分。
Scientists believe that there could be other forms of life existing somewhere in the depths of the metagalaxy.
译：科学家们相信，在 Metagalaxy 的深处可能存在其他形式的生命。
The study of the metagalaxy involves understanding its structure, evolution and the physical laws that govern it.
译：研究 Metagalaxy 涉及理解其结构、演化以及支配它的物理法则。
The concept of the metagalaxy helps us understand the scale of the universe and our place within it.
译：Metagalaxy 的概念帮助我们理解宇宙的规模以及我们在其中的位置。
The metagalaxy is filled with mysteries waiting to be uncovered by future generations of astronomers.
译：Metagalaxy 充满了等待未来天文学家揭开的谜团。
The expansion of the metagalaxy is accelerating due to dark energy, according to recent studies.
译：根据最近的研究，由于暗能量的作用，Metagalaxy 的膨胀正在加速。
The search for extraterrestrial intelligence is one of the most exciting endeavors in exploring the metagalaxy.
译：寻找地外智慧生命是探索 Metagalaxy 最令人兴奋的任务之一。
The metagalaxy is so vast that even at the speed of light, it would take billions of years to cross it.
译：Metagalaxy 如此广阔，即使以光速前进，穿越它也需要数十亿年的时间。
The study of the metagalaxy has led to the discovery of black holes, quasars, and other exotic objects.
译：对 Metagalaxy 的研究导致了黑洞、类星体和其他奇异物体的发现。
注：Metagalaxy 这个词在天文学中并不常用，通常用来指代整个可观测宇宙或所有星系的集合。在大多数情况下，科学家和天文学家更倾向于使用“可观测宇宙”或“宇宙”这样的术语。