人工 放射 性 元素 じゃなかった jinkōhōsha sei gensojanakatta
jinkōhōsha sei gensojanakatta
Noun
, Da Copula
The past negative form of 人工放射性元素
1. Was not an artificial radioactive element.
Past/Perfective
, Negative
, Physics
Word Pronunciation
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No variants available for this word.