[填空题]
During an Apollo lunar landing mission, tgm tme, /(cl6 yswy 9crg7ur(,m6w2z khe commhv10hry2,j -tmw,ejy and module continued to orbit the Moon at an altitude of about 10wjt20h h,-y1yvj mer,0 km. How long did it take to go around the Moon once? s
