Orion will operate on its own in lunar orbit, standing by for the return trip to Earth.

猎户舱将独自己在月球轨道运行，等候重返地球。

And proposals such as the Deep Space Gateway envision launching future missions from lunar orbit.

“深空闸道”这类的提案，立志运用月球轨道发射火箭。

When America returns to the moon, four astronauts will ride in Orion to lunar orbit and then all of them will move into the Altair lunar lander to go explore the moon.

当美国重返月球时，四位宇航员将乘坐猎户飞船飞向月球轨道，然后全部进入牛郎星登月器去探测月球。

They arrived in lunar orbit on Christmas Eve, Dec. 24, 1968, and sent back the famous first human views of Earth rising from the horizon of the moon.

他们于圣诞夜前夕也就是1968年12月24日到达月球轨道，并发回了著名的照片：人类首次看到地球从月球的地平线升起。

The farthest point on lunar orbit is called apogee.

而绕月轨道里地球最远的点则为远地点.