天然 放射 性 同位 体 じゃありません tennenhōshaseidō itaija arimasen
tennenhōshaseidō itaija arimasen
Noun
, Desu Copula
, Negation Auxiliary
The polite negative form of 天然放射性同位体
1. Not a naturally occurring radioisotope.; It is not a natural radioisotope.
Negative
, Polite
, Terminal Form
Word Pronunciation
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No variants available for this word.