China Daily:俄科學(xué)家預(yù)測20年內(nèi)人類和外星人相遇
hints:
Andrei Finkelstein
Russian Academy of Sciences' Applied Astronomy Institute
Interfax
extraterrestrial
Finkelstein
Earth
Cold War
- 相關(guān)熱點(diǎn):
- 劍橋少兒英語預(yù)備級
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