We can draw the earth's orbit round the sun.
我们可以画出地球绕太阳运行的轨迹。
Space probes parked in orbit round the sun might lie dormant yet intact for an immense period of time.
停在太阳周围轨道的太空探测器也许依然完好。
Once the satellite goes into its orbit round the earth, the panels are unfolded in order to catch the sunshine.
一旦卫星进入它绕地球运行的轨道,太阳能板就被打开用来吸收阳光。
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