The discovery of stars orbiting the supermassive black hole at the galactic center was a turning point in astrophysics.
发现恒星围绕银河系中心的超大质量黑洞运行是天体物理学的一个转折点。
预测未来的最好方法就是实现它。
The more you praise and celebrate your life, the more there is in life to celebrate.
林业的创新意味着在生态健康与经济可行性之间取得平衡。