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单词	Oort, Jan Hendrik
释义	Jan Hendrik Oort /ɔːt / (1900–92), Dutch astronomer. He proved that the Galaxy is rotating, and determined the position and orbital period of the sun within it.
随便看	pit boss pit bottom pit brow pit bull pit bull terrier Pitcairner Pitcairnese Pitcairn Islands pit canal pit-cave pit cavity pitch pitchable pitch-accented pit chamber pitch and putt pitch and run pitch-and-toss pitch angle pitch axis pitch-back pitch battle pitch bend pitch-black pitch-blackness

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