A so-called "planetary nebula" is a confusing misnomer because these clouds have nothing to do with planets. As a medium-size star nears the end, it puffs out into a red giant — about 100 to 1,000 times its original size — eventually engulfing the space around it, including any nearby worlds.
Terms & Conditions apply
。雷电模拟器官方版本下载对此有专业解读
union object_info *h;
summarizes text from a blog post, article, or another source into a script