单词 | 百万公里 |
释义 | 〔Mars〕The fourth planet from the sun, having a sidereal period of revolution about the sun of 687 days at a mean distance of 227.8 million kilometers (141.6 million miles) and a mean diameter of approximately 6,726 kilometers (4,180 miles).火星:距太阳第四近的行星。绕太阳公转周期为687天,距太阳平均距离为227.8百万公里(141.6百万英里),平均周长大约为6,726公里(4,180英里) |
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