AnalyzerSentence analysis3SpansSentence肝心な部分1000 character limitAnalyzeSentence肝かん心じんな部ぶ分ぶんSpan Details肝かん心じんessential; crucial; vital; keyna-adjective, nounなadnominal form of the copula (after a na-adjective or noun)grammar部ぶ分ぶんpart; portion; sectionnounReport an issue with this page