行星

1. 彗星和其他的行星同样是太阳家族的成员。
   Comets are just as much members of the sun's family as (are) the other planets.
2. 火星是太阳系的第四颗行星。
   Mars is the fourth planet in order from the sun.
3. 彗星象行星一样绕太阳运转，然而其轨道呈狭长的椭圆形。
   Comets move around the sun like planets, but in long oval course.
4. 土星是依次离太阳的第六颗行星。
   Saturn is the planet sixth in order from the sun.
5. 我们太阳系的行星有水星、金星、地球、火星、木星、土星、天王星和海王星。
   The planets of our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
6. 地球是一颗行星。
   The Earth is a planet.

行的英语翻译：

星的英语翻译：