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ＰＦ ぴいえふＡＳ えうえすでした
pii efueue sudeshita

敬
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Noun
, 
Desu Copula

The polite past form of ＰＦＡＳ

1. PFAS was.

Past/Perfective
, 
Polite
, 
Chemistry
, 
Medicine

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ＰＦＡＳでした

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