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研究 けんきゅう開発 かいはつじゃありませんでした
kenkyūkaihatsujārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 研究開発

1. Was not research and development.; Wasn't R&D.

Past/Perfective
, 
Negative
, 
Polite
, 
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研究開発じゃありませんでした

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