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	Russian Orthodox Church, the Russian Revolution, the Russian roulette rust Rust Belt, the rustic rusticity rustiness rustle rustler rustproof rusty rut rutabaga Ruth Ruth, Babe Rutherford, Ernest ruthless ruthlessly ruthlessness Rutledge, John rutted RV Rwanda Rwandan

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