地球的英文介绍（简单一些）
问题描述：
地球的英文介绍（简单一些）
地球的英文介绍（写给外星人看的）,简单一些就可以.
答
earth id the third planet in distance outward from the Sun.Believed to be about 4.6 billion years old, it is some 92,960,000 mi (149,600,000 km) from the Sun. It orbits the Sun at a speed of 18.5 mi (...