详细解释:n. 海王星
词型变化：
形容词:Neptunian英语解释：
名词 neptune:
(Roman mythology) god of the sea; counterpart of Greek Poseidona giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants例句：
The satellite of Neptune that is third in distance from the planet.海王卫二海王星的卫星，离该行星的距离处于第三位