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Featured Word B1

earth’s (noun (possessive))

属于或与地球有关的事物。

💬 例句

"Earth's atmosphere protects us from harmful solar radiation."

💡 记忆技巧

Think of the 's' in Earth's as standing for 'Surface' or 'System' – things that belong to the planet.

🏛️ 来源

⚠️ 常见错误

earths → earth's

earths' → earth's