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	foreshadow foreshadowing foreshorten foreshortened foresight foreskin forest forestall forester forest ranger forestry Forest Service, the foretaste foretell forethought foretold forever forevermore forewarn forewarning forewent forewoman foreword forfeit forfeiture

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