Mesothoriumi
[化] 新钍I; 228Ra
🗣️ 情景例句
He's quiet now.
他现在很安静。
It was so beautiful it took my breath away.
它美得使我目瞪口呆。
Bleriot had been making planes since 1905 and this was his lattes model.
布莱里奥从1905年起便开始研制飞机，“11号”飞机是他制作的最新型号。