途中で/途中に => on the way; in the middle of ~ N4
途端に... => as soon as; just as ~ N2
Time
途中 (は) => on the way; in the middle of ~ N3
Halfway
…のも無理 (は) ない => It's natural for... N3
Evaluate
中 => While (Lasting) N3
Continuous
のも無理もない => (to be) natural,(to be) understandable N3
Evaluate
(の中)で~が一番~です => out of this group, [A] is best N5
中 => During the period (Term) N3
Time
を中心に => focused on; centered on~ N2
最中に => while; during; in the middle of ~ N3
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
中 => Throughout, all over, during the course of N5
Time