AnalyzerSentence analysis5SpansSentenceスマホは現代生活に欠かせない。1000 character limitAnalyzeSentenceスマホは現げん代だい生せい活かつに欠かかせない。Span Detailsスマホsmartphonenounはtopic markergrammar現げん代だい生せい活かつcontemporary life; modern life; present-day lifenounにdirection, time, indirect object, or target markergrammar欠かかせない。indispensable; essential; vital; crucialexpression, i-adjective