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Sentence analysis
5Spans
Sentence
Span Details
惜しみない
generous; unstintingi-adjective
協力
cooperation; collaboration; help; supportnoun, suru verb
を
object markergrammar
約束
promise; agreement; one's word; contract; appointment; engagement; date; convention; rule; destiny; fatenoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar