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有効 ゆうこう成分 せいぶんじゃなかった
yūkōseibunjanakatta

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Noun
, 
Da Copula

The past negative form of 有効成分

1. Was not an active ingredient.; Was not effective.

Past/Perfective
, 
Negative
, 
Pharmacology

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有効成分じゃなかった

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