A Russian space capsule is currently orbiting the Earth.
一个俄罗斯太空舱目前正环绕地球飞行。
《柯林斯英汉双解大词典》
2
Our galaxy is so huge that dozens of lesser galaxies scamper about it, like moons orbiting a giant planet.
我们的银河系实在庞大，吸引着数十个较小的星系环绕着它奔跑，恰似环绕巨大行星旋转的卫星。
3
But such transits have paved the way for what might prove to be one of the most vital breakthroughs in the cosmos—detecting Earth-sized planets orbiting other stars.