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Sentence analysis
9Spans
Sentence
Span Details
感染
infection; contagion; becoming infected; being influenced (by harmful ideas); being infected (with an ideology)noun, suru verb
の
possession, attribution, nominalizer, or nominal linkergrammar
拡大
expansion; extension; magnification; enlargement; escalation; spreadnoun, suru verb
を
object markergrammar
防ぎ止める
prevent; stop; hold backichidan verb
対策
countermeasure; measure; stepnoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar