和earth,Mars,moon同类的英语单词?急

和earth,Mars,moon同类的英语单词?急 mars前面为什么不加the而earth和moon的前面确加the呢 是Mars是专有名词 而earth和 moon不是吗 在一个句子里有 mars earth moon 单词中 只有mars前面没加定冠词The .earth和moon前都加了.为什么?Water had already disappeared from planets like Mars or satellite like the moon,but it stayed on the earth. 星球的英文名称有含义、规律吗例如地球Earth,太阳Sun,月球Moon,火星Mars,有什么含义吗 the sun,the earth,the moon,Mars为什么Mars 前不加定冠词the 解道英语题__with the moon,Mars is father from Earth. 前面横线上填个词 求Bruno Mars的talking to the moon的中文歌词 求Bruno Mars的Talking to the moon的歌词, the earth is 49 times larger than the moon和 the earth is 49 times as large as the moon 的翻译一样否? 在moon earth 前的介词moon 前加什么介词.earth前加什么介词. 英语翻译Earth is the third planet from the Sun.I would like to visit Mars.Mars has two moons.The moon is beautiful.Venus is the second planet from the Sun.Jupiter is more important than Mercury.The rocky planets are Mercury,Venus,Earth,and Mars.T how does the man from the Mars like the life on Earth 的意思 something about the size of mars hit earth的意思请问一下这句话怎么翻译? The earth has half as many moons as Mars.求翻译,这是外研版高91页的句子. 用英文来解释：Earth,Mars,galaxy earth,moon是世上独一无二的,应该有the,怎么on earth/on the earth都对 The moon is ------ ---- ----- the earth. moon earth 可数吗thanks