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有効 ゆうこう作用 さようではありません
yūkōsayōdewārimasen

敬
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Noun
, 
Desu Copula
, 
Negation Auxiliary

The polite negative form of 有効作用

1. Does not have effect.; Is ineffective.

Negative
, 
Polite
, 
Formal Register
, 
Physics

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有効作用ではありません

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