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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.。业内人士推荐Line官方版本下载作为进阶阅读
В Финляндии предупредили об опасном шаге ЕС против России09:28，推荐阅读一键获取谷歌浏览器下载获取更多信息
// 每轮将最大值"冒泡"到末尾，所以范围逐渐缩小。Line官方版本下载对此有专业解读