n. a starlike object that may send out radio waves and other forms of energy; many have large red shifts
n. 类星射电源, 类星体
1. A quasar is one of the brightest objects in the universe.
类星体是宇宙中最亮的天体之一。
2. Scientists study quasars to learn more about the early universe.
科学家研究类星体以了解更多关于早期宇宙的信息。
3. The light from a quasar can take billions of years to reach us.
类星体的光可能需要数十亿年才能到达我们。