数据告诉我们有15-20%的类日恒星孕育的世界与地球大小相似，其运行轨道与恒星的距离可能带来温和的地表温度。
The numbers tell us that 15-20 percent of Sun-like stars harbor worlds similar in size to the Earth, orbiting stellar parents at distances implying that their surfaces might be temperate.