AnalyzerSentence analysis3SpansSentence心の中でつぶやく1000 character limitAnalyzeSentence心こころの中なかでつぶやくSpan Details心こころの中なかinside one's heart; in one's mindexpression, nounでlocation, means, or scope markergrammarつぶやくmutter; murmur; grumble; tweet; post on Twitter-> 呟くgodan verb