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Sentence analysis
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Sentence
Span Details
ついに
finally; at last; in the end; after all; never (with negative)-> 遂にadverb
トンネル
tunnel; tunnel through a potential barrier; letting a grounder go through one's legsnoun, suru verb
が
subject markergrammar
貫通
penetration; passing through; piercing through; being well versed in; having thorough knowledge ofnoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar