反面 => while, although; on the other hand~ N2
中 => While (Lasting) N3
Continuous
全く~ない => not at all ~ N3
全然~ない => (not) at all N4
途中で/途中に => on the way; in the middle of ~ N4
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
途中 (は) => on the way; in the middle of ~ N3
Halfway
中 => Throughout, all over, during the course of N5
Time
[全「まった」]く~ない => Not A (at all; even a little bit) N3
Not only, Not even
(の中)で~が一番~です => out of this group, [A] is best N5