trajectory
英 [trə'dʒekt(ə)rɪ; 'trædʒɪkt(ə)rɪ]
美 [trə'dʒɛktəri]
n. [物] 軌道，軌線；[航][軍] 彈道
中文詞源：
trajectory 軌跡，蹤跡，彈道
tra-,轉移，穿過，-ject,扔，投射，詞源同 project,jet.引申詞義軌跡，蹤跡，彈道等。
例句：
1. My career seemed to be on a downward trajectory.
2. It is not difficult to sketch the subsequent trajectory.
很容易描繪出它們最終的軌跡.
3. The path followed by a projectile is called its trajectory.
拋物體所循的路徑稱為它的軌道.
4. The missile deflected from its trajectory.
導彈已偏離軌道.
5. From then on it must coast in a trajectory, or flight path, to its target.
從那時起,它就得沿著彈道, 即沿著飛行航線滑向其目標.
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