Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
I really must be going now.
现在我真的该告辞了。
What do you want?
你到底想怎样？
I was not surprised to find that the machine still refused to work after I had reassembled it,
等我装完后，那台割草机仍然一动不动，对此我倒并不感到吃惊。