The track of a wheel.

辙迹。

A groove or hollow.

凹槽；辙。

Fixed habit; dull routine.

常规；惯例；老规矩。

To cut into grooves or hollows; make wheel tracks in.

使生凹痕；压出车辙。

Periodic sexual excitement of various mammals, as cattle, deer, etc.

(动物之)发情期；春情发动。

To be in or enter into a state of rut.

发情；进入发情期。