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Featured Word A2

planets (noun)

Large celestial bodies that orbit a star, are spherical in shape due to their own gravity, and have cleared their orbital neighborhood of other debris.

💬 例句

"Astronomers use powerful telescopes to discover new planets."

💡 记忆技巧

P-L-A-N-E-T-S: People Love Always Noticing Every Tiny Star (even though planets aren't stars!).

🏛️ 来源

⚠️ 常见错误

The Sun is a planet. → The Sun is a star.

There are nine planets. → There are eight planets.