trajectory
trajectory — 名詞
- trajectorysingular
- trajectoriesplural
1. the curved line a moving object makes in the air as it travels from its starting
軌跡；彈道
物體拋出或發射後行經的曲線路徑
the curved line a moving object makes in the air as it travels from its starting point to where it lands or stops, for example a ball after it is thrown or a rocket after it is launched.
Christopher watched the baseball's high trajectory as it sailed over the fence.
克里斯多福看著棒球劃過圍牆的高弧軌跡。
possessive + trajectory: object's trajectory
The rocket's trajectory was carefully calculated by the engineers in Houston.
火箭的彈道是由休士頓的工程師仔細計算的。
passive: trajectory was calculated by [agent]
On the screen, the missile's trajectory appeared as a bright red line.
螢幕上，飛彈的軌跡顯示為一條亮紅色的線。
Wind changed the trajectory of the paper airplane, sending it into a tree.
風改變了紙飛機的飛行路線，讓它飛進了一棵樹裡。
trajectory of [object]: trajectory of the paper airplane
The tennis ball's trajectory curved sharply after Lukas hit it with spin.
路克斯加上旋轉擊球後，網球的軌跡急遽彎曲。
- flight trajectory
- ballistic trajectory
- trajectory of a bullet
- trajectory of a rocket
- trajectory of a ball
- flight path
more specific to aircraft and missiles; suggests a planned course
- arc
emphasises the curved shape of the movement
- curve
more general, less technical than trajectory
- ballistic curve
technical term for a projectile's unpowered path
文法句型
trajectory of [something]
possessive + trajectory
用法筆記
This sense always refers to a curved or arched movement through the air, not a straight line on the ground. A train follows a track, not a trajectory.
常見錯誤
2. the direction in which a situation, someone's career, or a series of events deve
發展歷程
事件、事業或局勢發展演變的方向
the direction in which a situation, someone's career, or a series of events develops and changes over time, imagined as a course leading to a particular result.
Indra's career trajectory took her from a small startup to a leading technology company.
因德拉的職業發展歷程讓她從一家小型新創公司走到頂尖科技公司。
career trajectory — common noun-noun collocation
The country's economic trajectory has been steadily upward for the past decade.
該國的經濟發展方向在過去十年間穩定上升。
economic trajectory + upward — adjective + noun + adverb pattern
The doctor explained the likely trajectory of the disease over the next few months.
醫生解釋了疾病在接下來幾個月可能的演變方向。
trajectory of [something]: trajectory of the disease
Meera believed her education would change the trajectory of her entire family's future.
米拉相信自己的教育將改變整個家庭的未來發展方向。
After the merger, the company's trajectory shifted from growth to stability.
合併之後，該公司的發展方向從成長轉為穩定。
- career trajectory
- economic trajectory
- upward trajectory
- downward trajectory
- change the trajectory
- set on a trajectory
- course
more general; can apply to any direction of movement or development
- direction
focuses on the intended or actual end point, not the path
- progression
emphasises forward movement step by step
- path
less formal; works for both literal and figurative uses
文法句型
possessive + trajectory
trajectory of [something]
adjective + trajectory
用法筆記
Common in figurative contexts about careers, economies, political movements, and health outcomes. The physical sense (sense 1, PHYSICAL PATH) refers to an actual curved line through air; this sense is metaphorical.