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Sentence analysis
8Spans
Sentence
Span Details
トンネル
tunnel; tunnel through a potential barrier; letting a grounder go through one's legsnoun, suru verb
工事
construction work; constructionnoun, suru verb
では
contrastive で + は; then; well thengrammar
遮水
water cutoff; seepage control; waterproofingnoun, suru verb
対策
countermeasure; measure; stepnoun
が
subject markergrammar
重要
important; essential; significantna-adjective
だ。
plain copulagrammar