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Sentence analysis
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Sentence
Span Details
これ
this; this one; this person; now; this point in time; here; this (emphatic); I; me-> 此れpronoun, adverb
は
topic markergrammar
幾年にもわたる
extending over many years; spanning several yearsexpression, noun-modifying
努力
effort; hard work; endeavornoun, suru verb
の
possession, attribution, nominalizer, or nominal linkergrammar
結晶
crystal; crystallization; fruit; result; productnoun, suru verb
だ。
plain copulagrammar