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三 さん塩基 えんき酸 さんでした
san'enkisandeshita

敬
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Noun
, 
Desu Copula

The polite past form of 三塩基酸

1. Was tris(hydroxymethyl)aminomethane.

Past/Perfective
, 
Polite

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三塩基酸でした

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