Thorium decay series
[化] 钍衰变系
🧩 词语组成解析
n. 钍\\n[化] 钍Th
🗣️ 情景例句
and Mrs. Montefiore has reserved the honeymoon suite for us. Montefiore
太太为我们保留了蜜月套房。
When I had a rest, what were you doing?
当我休息时，你在做什么？
Here's a pen.
这里有笔。