radioactivity
/ˌreɪdɪəʊakˈtɪvɪti/
The release of energy from unstable atoms.
“The scientist carefully measured the radioactivity in the glowing rocks.”
My Deck에 추가
inoh
inoh
/ˌreɪdɪəʊakˈtɪvɪti/
The release of energy from unstable atoms.
“The scientist carefully measured the radioactivity in the glowing rocks.”
My Deck에 추가