ラドンだった
radondatta
1. Was radon.
★ Common
Noun
#105846
1. Was radon.
1. radon (Rn)
1. If it were radon; When it's radon
1. Radon's; Relating to radon
1. If radon; When radon
1. It's not radon.
1. It was not radon.
1. Radon, probably.; It will likely be radon.
1. Radon is.; I am.
1. Was not radon.; It was not radon.