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BNC: 12757 COCA: 7728

trajectory

Word family 
Related topics: Physics
ldoce_248_btra·jec·to·ry /trəˈdʒektəri/ noun (plural trajectories) [countableC]  
1. technicalHP the curved path of an object that has been fired or thrown through the air 〔物体射向或抛向空中形成的〕轨道，轨迹 →5  See picture of trajectory 轨迹
2  ldoce_248.png formal the events that happen during a period of time, which often lead to a particular aim or result 〔事物的〕发展轨迹
 The decision was certain to affect the trajectory of French politics for some time to come.
这一决定在未来的一段时间里必将影响法国的政治轨迹。
Examples from the Corpus
trajectory• In 1873, however, one was found on a trajectory that brought it in to cross the orbit of Mars.• The spectator is dropped into the picture, with its racing and contradictory trajectories, like Cary Grant into a Hitchcock plot.• Scrubbing my mouth with my sleeve, I feel the Cathedral lurch beneath me, tilt towards a new trajectory.• There is obviously a vast number of such possible trajectories.• The postwar family stories suggest that the family has continued in the same trajectory.• Simulation has been used to predict population changes over a long period of time and for charting space-satellite trajectories.• Neither these, nor a variety of other types of household fit into the stereotypical trajectory through the life course.• Even as the trajectory of his thought kept rising in the early seventies, the clock was ticking on his pet project.
Origin trajectory
(1600-1700) Modern Latin trajectoria, from Latin trajectus, past participle of traicere “to cause to cross”, from trans- ( → TRANS-) + jacere “to throw”
tra·jec·to·ry noun
Chinese
Syllable
Corpus
BNC: 12757 COCA: 7728
BNC: 12757 COCA: 7728
BNC: 12757 COCA: 7728
trajectory
Lines and flat surfaces: arc, axis, chord...
Progress and development: progress, development, advance...

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