guǐ​jì HSK7

track

轨迹 (軌跡) guǐ​jì
track noun
the course of development or the progression of a person's life or a historical event

Everyone's growth trajectory is unique.

trajectory noun
the physical path followed by a moving object, projectile, or celestial body

The trajectory of this comet is very unusual.

locus noun
a set of points whose location satisfies or is determined by specific mathematical conditions

A circle is the locus of points in a plane that are at a fixed distance from a fixed point.

Frequency

Movie subtitles
2.92 per million appears in 1% of films
Written text
7.98 per million

Details

HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT