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Sentence
Span Details
生物海洋学
marine biology; biological oceanographynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
は、
topic markergrammar
プランクトン
planktonnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
採集
collecting; gatheringnoun, suru verb
が
subject markergrammar
欠かせない。
indispensable; essential; vital; crucialexpression, i-adjective