AnalyzerSentence analysis4SpansSentence空気が一変する1000 character limitAnalyzeSentence空くう気きが一いっ変ぺんするSpan Details空くう気きair; atmosphere; mood; situation; someone with no presence; someone who doesn't stand outnounがsubject markergrammar一いっ変ぺんcomplete change; about-face; transformationnoun, suru verbするlight/support verb with a noun or noun-like phrasegrammar
