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Sentence analysis
6Spans
Sentence
Span Details
骨身を惜しまず
sparing no effort; tirelessly; painstakinglyexpression
に
direction, time, indirect object, or target markergrammar
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
打ち込ん
drive in; hammer in; hit; drive; smash; fire into; shoot into; input; enter; devote oneself to; be absorbed in; throw oneself into; practice hitting; land a blow; get a hit in; invade territory; place a stone in opponent's formation; pour into a form-> 打ち込むgodan verb
だ。
past tense or completed action-> たgrammar