柯林斯詞典planetary /?pl?n?t?r?/ 1. ADJ Planetary means relating to or belonging to planets. 行星的[ADJ n] Within our own galaxy there are probably tens of thousands of planetary systems. 在我們所在的銀河系中，很可能存在數(shù)以萬計(jì)的行星系。 返回 planetary劍橋詞典relating to planets 行星的 planetary science /motion 行星學(xué)／運(yùn)動(dòng) 也見interplanetary 返回 planetary