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Span Details
淀ん
stagnate; become still; stop flowing; settle at the bottom; be deposited; be sedimented; become dull; become sluggish; lose freshness; falter; hesitate; stammer-> 淀むgodan verb
だ
past tense or completed action-> たgrammar
空気
air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand outnoun