柯林斯詞典interplanetary /??nt??pl?n?t?r?, -tr?/ 1. ADJ Interplanetary space travel is travel between different planets. 行星間的[ADJ n] ...an unmanned rocket scheduled to head toward the sun, to a point in interplanetary space a million miles away. ...一枚無人火箭計劃飛曏太陽,到達(dá)一百萬英裡外的行星空間。 返回 interplanetary劍橋詞典between planets 行星間的 interplanetary space 行星際空間 返回 interplanetary