AnalyzerSentence analysis4SpansSentence背中をトントンする1000 character limitAnalyzeSentence背せ中なかをトントンするSpan Details背せ中なかback (of the body)nounをobject markergrammarトントンtap-tap; knock-knock; with a tapping sound; smoothly; without a hitch; swimmingly; even; equal; break-even-> とんとんadverb, na-adjectiveするlight/support verb with a noun or noun-like phrasegrammar
