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Sentence analysis
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Sentence
Span Details
ワクチン
vaccine; antivirus softwarenoun
開発
development; cultivation; application; exploitation (of resources)noun, suru verb
では、
contrastive で + は; then; well thengrammar
病原体
pathogennoun
を
object markergrammar
弱毒化
attenuation; weakeningnoun, suru verb
して
light/support verb with a noun or noun-like phrase-> するgrammar
使用
use; utilization; applicationnoun, suru verb
する
light/support verb with a noun or noun-like phrasegrammar
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb