[问答题]
Describe a red giant star. 8 ::hdidnv zq/: wu/uqList some of its properties. hp, w-e4n5zywvbow 9oy74,u5:j clb uy 6iki4
参考答案: A red giant star is extremely large in size, it has a very high luminosity, but it has a relatively cool surface temperature that causes it to be red in color.
