名詞 pluto:

1. a cartoon character created by Walt Disney
2. (Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone
   同義詞：Hades, Aides, Aidoneus
3. a small planet and the farthest known planet from the sun; has the most elliptical orbit of all the planets

1. Pluto has an elliptic orbit.
   冥王星的軌道是橢圓形的。

Plu.to

n.（名詞）
Roman Mythology The god of the dead and the ruler of the underworld.
【羅馬神話】 普路托：死亡之神和陰間的統(tǒng)治者
The ninth and usually farthest planet from the sun, having a sidereal period of revolution about the sun of 248.4 years, 4.5 billion kilometers or 2.8 billion miles distant at perihelion and 7.4 billion kilometers or 4.' billion miles at aphelion, and a diameter less than half that of Earth.
冥王星：距離太陽第九遠而且通常也是最遠的一顆行星，它繞太陽運轉(zhuǎn)的恒星年為2484年，在近日點時距太陽45億公里或28億英里，在遠日點時距太陽74億公里或4'億英里，其直徑不到地球直徑的一半

來源：
Latin Plôtô Plôtôn-
拉丁語 Plôtô Plôtôn-
from Greek Ploutôn
源自 希臘語 Ploutôn
from ploutos [wealth] * see pleu-
源自 ploutos [財富] *參見 pleu-