2. Discovery is set to
undock from the station on Monday. The shuttle will return to Earth on November 7.

探索在星期一从空间站出发,到11月7日航空飞船将返回地面。
3. Discovery said (is set) to
undock from the station on Monday. The shuttle will return to earth on November 7th.

“发现号”在周一将于空间站脱离。该航天飞船将于11月7日返回地球。