[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
ときている => Because of A N1
Reason, Result, Response
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
かける => Is doing, haven't finished yet N2
Will, Decision, “Doing”
[続「つづ」]ける => continues, to continue to N4
Secondary Verb
きる => To do A completely/exhaustively/to the end N2
Potential, Possibility
[極「きわ」]まる => Extremely A, could not be more A N1
Adjectival, Descriptions
きらいがある => There is a tendency to do A N1
Potential, Possibility
に[先駆「さきが」]けて => The earliest, very first in A; Ahead of A, in advance of A N1
Time, Situation
をきっかけに => With A as a good opportunity/chance to B, Using A as a time to (start) B N2
Information, Report
に[決「き」]まっている => A is a given, A must be the case N2
Information, Report
きり => Only A N3
Degree. Level, Amount