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費用 ひよう対 たい効果 こうかじゃなかった
hiyōtaikōkajanakatta

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Noun
, 
Da Copula

The past negative form of 費用対効果

1. Wasn't cost-effective.; Didn't have cost-benefit.

Past/Perfective
, 
Negative

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費用対効果じゃなかった

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