planet
/ˈplænət/
A2 · Elementary★★★★☆
Simple Meaning
太空中围绕恒星（如太阳）运行的巨大圆形天体。
When to Use
💬Daily Conversation📚Academic Writing📰News & Media
Elementary — simple everyday language
Examples in Conversation
“哪颗行星离太阳最近？”
“科学家刚刚在另一个太阳系发现了一颗新行星。”
Learning Path
▶Full Definition
Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.