中 => While (Lasting) N3
Continuous
途中で/途中に => on the way; in the middle of ~ N4
手前 => considering; before; in front of; one’s standpoint N1
中 => During the period (Term) N3
Time
のが上手 => to be good at doing something N5
のが下手 => to be bad at doing something N5
…すぎ ... => too much N4
Emphasis on degree
を中心に => focused on; centered on~ N2
すぎる => too much N4
最中に => while; during; in the middle of ~ N3
途中 (は) => on the way; in the middle of ~ N3
Halfway
中 => Throughout, all over, during the course of N5
Time