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单词	trajectory
释义	trajectorytrajectory /trəˈdʒɛktəri/ noun (plural trajectories) [countable] Etymology ETYMOLOGYtrajectory Origin: 1600-1700 Modern Latin trajectoria, from Latin trajectus, past participle of traicere to cause to cross, from trans- ( ➔ TRANS-) + jacere to throw science, physics the curved path of an object that is fired or thrown through the air
随便看	R. Ra Rabat rabbi rabbinate rabbinical rabbit rabbit hutch rabbit punch rabbit warren rabble rabble-rouser rabble-rousing Rabelais, François rabid rabies Rabin, Itzhak raccoon race race car racecourse racehorse racer race relations race riot

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