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Sentence analysis
6Spans
Sentence
Span Details
探検隊
exploration party; expedition teamnoun
は
topic markergrammar
密林
dense forest; jungle; thicket; Amazon (online retailer)noun
を
object markergrammar
進ん
advance; go forward; move ahead; precede; go ahead; lead; make progress; improve; deepen; heighten; intensify; be fast (clock); be ahead; gain time; do willingly; do of one's own accord-> 進むgodan verb
だ。
past tense or completed action-> たgrammar