AnalyzerSentence analysis3SpansSentence腕に磨きをかける1000 character limitAnalyzeSentence腕うでに磨みがきをかけるSpan Details腕うでarm; ability; skill; talent; physical strength; arm strengthnounにdirection, time, indirect object, or target markergrammar磨みがきをかけるpolish up; refine; hone; polish by rubbingexpression, verb