相关单词近义词 astronaut 宇航员, cosmonaut 苏联太空人临近词space, spacer lug, space list, space hold, space city, space code, spacecratf, spaced out, spacer rod, space tons, space bias相似词space-time, spacecraft, spaced out, spacefaring, spaceplane, spacer, spaceship, spacesuit, 返回 spaceman