ラドンです
radondesu
1. Radon is.; I am.
★ Common
Noun
#512635
1. Radon is.; I am.
1. radon (Rn)
1. Radon's; Relating to radon
1. With radon; By radon
1. Not radon.; It's not radon.
1. It was radon.
1. Was radon.
1. Radon, probably.; It will likely be radon.
1. It is not radon.
1. Was not radon.; It was not radon.