Analyzer
Sentence analysis
9Spans
Sentence
Span Details
両国
both countries; Ryōgoku (area of Tokyo)noun
は
topic markergrammar
互いに
mutually; with each other; reciprocallyadverb
協力
cooperation; collaboration; help; supportnoun, suru verb
する
light/support verb with a noun or noun-like phrasegrammar
こと
thing; matter; the fact that; doing; incident; event; trouble; crisis; circumstances; situation; state of affairs; affairs; business; work; make-believe; pretending to; also known as; real name; alias; no need to; not necessary to; should; it is important to; I advise that-> 事noun, noun suffix
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