を中心に => focused on; centered on~ N2
…のも無理 (は) ない => It's natural for... N3
Evaluate
一応 => more or less; pretty much; roughly; tentatively ~ N2
に応じて => depending on; in accordance with ~ N2
のも無理もない => (to be) natural,(to be) understandable N3
Evaluate
に[応「おう」]じて(は)/に[応「おう」]じ(た) => In response/reply to A, In line with A; That fits with A N2
Based, Focused, Depending on
[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous