Protoactinium
n. [化]镤
🗣️ 情景例句
Did you see what Diane was eating? And she's on a diet.
你看戴安妮在吃什么吗？她在节食啊。
I've been here for three weeks, and so far I've enjoyed it.
我已经在这里逗留了三个星期，到现在为止，我过得很好。
What is it about?
这是关于什么的？