orbit / ˈɔːbɪt /n. (环绕地球、太阳等运行的)轨道;势力范围vt.＆vi.沿轨道运行;环绕…运行【人教版高中英语必修三 unit 4 （单词与全书例句）】

 orbit 
/ ˈɔːbɪt /
n.    (环绕地球、太阳等运行的)轨道;势力范围vt.＆vi.沿轨道运行;环绕…运行
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1. China became the third country in the world to independently send humans into space in 2003, when Yang Liwei successfully orbited Earth in the Shenzhou 5 spacecraft. 

2. Then Shenzhou 6 and 7 completed a second manned orbit and the first Chinese spacewalk, followed by the vehicle Jade Rabbit being sent to the moon to study its surface.

3.  It has directly resulted in the many satellites that now orbit Earth.

4. The probe enters the Earth-Mars transfer orbit.

5. Controllers on Earth guide the probe into the orbit around Mars.

6. The orbiter and the lander separate.

7. Some satellites can go around Earth in 90 minutes. Others that are much further away can take a whole day to orbit Earth.

8. Why was the Russian space station Mir ( 和平号空间站 ) brought down out of orbit?

9. The Hubble Space Telescope is a very powerful telescope and was put into low orbit around Earth in 1990. 

10. On 4 October 1957, the Sputnik 1 satellite was launched by the USSR and successfully orbited around Earth. 

11. 2003年，杨利伟驾驶神舟五号飞船成功绕地球飞行，中国成为世界上第三个独立将人类送入太空的国家。

1. 随后，神舟六号和七号完成了第二次载人航天飞行和中国首次太空行走，随后玉兔号航天器被送往月球研究月球表面。

2. 这直接导致了如今绕地球运行的众多卫星的出现。

3. 探测器进入地火转移轨道。

4. 地球控制人员引导探测器进入火星轨道。

5. 轨道器和着陆器分离。

6. 有些卫星可以在90分钟内绕地球一圈。而距离更远的卫星则需要一整天才能绕地球一圈。

7. 俄罗斯和平号空间站为何被击落出轨？

8. 哈勃太空望远镜是一架非常强大的望远镜，于 1990 年被送入地球低轨道。

9. 1957 年 10 月 4 日，苏联发射了 Sputnik 1 卫星，并成功绕地球运行。