安定 同位 体 じゃなかったです antei dō itaijanakattadesu
antei dō itaijanakattadesu
Noun
, Desu Copula
The polite, past negative form of 安定同位体
1. Was not a stable isotope.
Past/Perfective
, Negative
, Polite
, Casual Register
Word Pronunciation
文
No variants available for this word.