Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
My friends will get a big kick out of getting these.
送劳力士，我同事准乐死了！
What's bothering you?
什么在困扰你？
I think you need a number 47. The bus stop is along that road, on the right.
我想你需乘47路车。