a. of or relating to or characteristic of the planet Earth or its inhabitants
a. 行星的, 流浪的, 迁移不定的, 地球上的, 现世的
1. The planetary system consists of eight planets orbiting the sun.
行星系统由八个围绕太阳运转的行星组成。
2. Scientists study planetary atmospheres to understand climate change on Earth.
科学家研究行星大气以了解地球上的气候变化。
3. The telescope allows us to observe distant planetary bodies in space.
这台望远镜使我们能够观察到太空中遥远的行星体。