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Sentence analysis
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Sentence
Span Details
工場排水
industrial wastewater; factory effluentnoun
が
subject markergrammar
原因
cause; origin; sourcenoun, suru verb
で
location, means, or scope markergrammar
水質汚染
water pollutionnoun
が
subject 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
でいる。
ongoing or resultant state-> ているgrammar