AnalyzerSentence analysis4SpansSentenceませた口をきく子供1000 character limitAnalyzeSentenceませた口くちをきく子こ供どもSpan Detailsませbe precocious; be mature for one's age; seem grown-up-> 老成るichidan verbたpast tense or completed actiongrammar口くちをきくspeak; talk; mediate; act as a go-between; put in a good wordexpression, verb子こ供どもchild; childrennoun