Analyzer
Sentence analysis
9Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
長年
many years; a long timenoun, adverb
の
possession, attribution, nominalizer, or nominal linkergrammar
練習
practice; training; drill; exercisenoun, suru verb
で
location, means, or scope markergrammar
技術
technology; engineering; technique; skill; art; craftnoun
に
direction, time, indirect object, or target markergrammar
磨きをかけた。
polish up; refine; hone; polish by rubbing-> 磨きをかけるexpression, verb