を[機「き」]に => Use A as an opportunity N1
Time, Situation
をかわきりに => Starting with A N1
Miscellaneous
をはじめ/をはじめとする => For example, A N2
Lists, Examples
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
ときている => Because of A N1
Reason, Result, Response
ふりをする => To pretend to (be) A N3
Adjectival, Description
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
を[余儀「よぎ」]なくされる => Must do A N1
Will, Decision, Doing
きらいがある => There is a tendency to do A N1
Potential, Possibility
ざるを[得「え」]ない => Only A is left to do/can be done N2
(Not)only, (Not) even
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