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Pronunciation ChallengeBlack Holes 101 | National Geographic

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Today's Sentence

Video not in English?
Black Holes 101 | National Geographic
A black hole is a region in space where the force of gravity is so strong not even light, the fastest known entity in our universe, can escape.
Original Video:Black Holes 101 | National Geographic

Key Vocabulary

1. universe

universe

[ˈjuː.nə.vɝːs](n.)

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