n. (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
n. any celestial body (other than comets or satellites) that revolves around a star
n. 行星, 命运星辰, 杰出的人, 重大影响的事
1. The Earth is the third planet from the Sun.
地球是距离太阳第三颗行星。
2. Mars is often called the "Red Planet" because of its color.
火星常被称为“红色星球”，因为它的颜色。
3. Scientists are exploring other planets for signs of life.
科学家们正在探索其他行星以寻找生命的迹象。