Now as everybody knows ,UFO is what we call Unknown Flying Object for short.For a period of time ,once we mentioned UFO , we always communicate it with high-tech ,extra-terrestrials ,outter space culture and many other exciting things .There are a lot of witnesses around the world ,affirming that they chanced to have seen some strange things in the sky . However , most of them cannot hand in the credible evidence .That's a pity.With the long-term efforts of the ufologists , most of the incidents are finally considered as natural phenomenons or human conducts . Some so-called UFO is just a bird , a plane , a balloon or even a plastic bag .
Until now ,we haven't found any clues on real extraterrestrial civilization or supernatural phenomenon .But we are willing to see , with the constant exertion of humanity,we will get more profound knowledge , we will get to realize the essence of the world.We have the faith!
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