Earth (otherwise known as the World, in Greek: ΓαῖαGaia, or in Latin: Terra) is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.
近义、反义、联想词
近义词
n.
terrestrial planet, material, stuff, object, physical object, location, element