groove
Definition
A long, narrow furrow or channel cut into a surface; a habitual routine or a state of being engrossed in work or activity.
한국어 긴, 좁은沟나물이나 채널; 일상적인 습관이나 일이나 활동에 몰두한 상태
Example
"He placed the record into the groove and started the turntable."