
trajectory
词源
源自17世纪法语 trajectoire,来自拉丁语 trajectus(跨越、穿过),由 trans-(横跨)和 jacere(投掷)组成,字面意思为投掷的路径。
noun
❶ 指物体在空间中移动的路径或轨道,常用于描述子弹、火箭等抛射物的飞行路线。
“The missile's trajectory was carefully calculated before launch.”
(导弹的飞行轨迹在发射前经过了精确计算。)
“Scientists tracked the trajectory of the comet as it approached Earth.”
(科学家们追踪了这颗彗星接近地球时的运行轨迹。)
❶ 比喻事物发展或变化的进程、方向,常用于描述职业、人生或事件的发展趋势。
“Her career trajectory took her from intern to CEO in just ten years.”
(她的职业发展轨迹让她在短短十年内从实习生成长为CEO。)
“The pandemic changed the trajectory of many small businesses.”
(疫情改变了许多小企业的发展轨迹。)
常见短语
upward trajectory — 指持续上升或改善的趋势,常用于描述经济指标、职业发展等积极变化。
“The company's profits have been on an upward trajectory for three consecutive quarters.”
(该公司利润已连续三个季度保持上升趋势。)
downward trajectory — 指持续下降或恶化的趋势,常用于描述经济衰退、健康恶化等负面变化。
“The patient's health has been on a downward trajectory despite treatment.”
(尽管接受治疗,这位患者的健康状况仍持续恶化。)