Radiothor
放射性指示剂
🗣️ 情景例句
Five hundred dollars, please. And could you give me ten dollar in small change?
请换500美元。再另外能否给我10元的小面额零钱？
There is a phone booth in the corner.
在转角处有个电话亭。
The guards couldn't have been watchig very carefully.
警卫不可能一直认真地查看。