再び => again; once more N2
も構わず => without caring; without worrying about ~ N2
も[構「かま」]わず => Without considering A N2
Considering, Concerning
を契機に => as a good opportunity/chance to N2
Expected
を[機「き」]に => Use A as an opportunity N1
Time, Situation
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
でも[差「さ」]し[支「つか」]えない => It's OK if A, it doesn't matter if A N1
Need/Requirements
をきっかけに/を契機に => with… as a start; as a result of; taking advantage of N2