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。
有时我认为在计算领域中唯一通用的是获取-执行周期。
The transformation of the coal industry must rely on technological leadership, and green development is the only way forward.
小人反复无常,不可深交。