trajectory [trə'dʒɛktəri]
n. [物] 轨道,轨线;[航][军] 弹道
词源
trajectory 轨迹,踪迹,弹道
tra-,转移,穿过,-ject,扔,投射,词源同 project,jet.引申词义轨迹,踪迹,弹道等。
1. The javelin's trajectory goes right to the audience!Watch out.
标枪投射往观众席飞过去了!小心!
2. The missile deflected from its trajectory.
导弹已偏离轨道.
3. From then on it must coast in a trajectory, or flight path, to its target.
从那时起,它就得沿着弹道, 即沿着飞行航线滑向其目标.
英英解析:
If you stay on your current trajectory of constant shopping, dining out, and yacht rentals, you'll end up broke. A trajectory is the path of an object through space, or the path of life that a person chooses.
Trajectory comes from the Latin trajectoria, which means "throw across." The prefix tra- is short for trans-, which means "across" (think transport and transit) and the ject comes from jacere, which means "throw" and is also the root of the word jet. If you wanted to describe the path of a jet through the sky, you could refer to the jet's trajectory.(vocabulary.com)