earth-bound

1. The monster spot came into view of Earth-bound telescopes last week.
上星期,人们用地面望远镜观测到了这一太阳黑子群。

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2. I believe we are in duty bound to recover the beauty of our earth.
我相信恢复地球之美是我们义不容辞的责任!

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3. Now, People must protect the earth the earth, every one is duty-bound to protect!
现在,人们必须保护地球。保护地球,人人有责!

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4. Now, People must protect the earth the earth, every one is duty-bound to protect!
现在,人们必须保护地球。保护地球,人人有责!

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