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2?92??95?

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4?????????????

5?????

????,?????“2024 YR4”?????????“?????????????8?????”????

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????:????????(CNN)

“2024 YR4”?2024?????????12???????27????????,????40?90???,????

???2025????1????,NASA???????????,?????????4800???????????,????????????,???

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2013????????????????????,?20???????????,?????????????,????????20??????30????,?????,???,????????7000?,????????????????????????1000??????????

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