Any of the extensive flat basaltic plains on the surface of the moon, visible from Earth to the naked eye, which appear dark and were once thought to…
| 单词 | θ525 |
| 释义 | the world > the universe > planet > primary planet > superior planet > [noun] > Mars > mare (2) mare1860 Any of the extensive flat basaltic plains on the surface of the moon, visible from Earth to the naked eye, which appear dark and were once thought to… Subcategories:— ridge (1) |
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