Professor Jacobs is an expert in Ufology and has been studying UFO's for over 20 years.

雅克布斯教授是飛碟學(xué)方面的專家,他研究不明飛行物已有20多年.

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In Ufology, a close encounter is when a person witnesses an unidentified flying object.

在不明飛行物學(xué)中, 當(dāng)一個人目擊了不明飛行物被稱為近距離接觸.

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In Ufology , any extraterrestrial contact initiated by humans is known Close Encounter of the Fifth Kind.

在不明飛行物學(xué)中,人類與外星任何形式的接觸都被稱為第五類接觸.

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