Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
They say it's going to rain tomorrow.
据说明天有雨。
I cannot be your friend and your flatterer too.
我不能既是你的朋友，而又对你阿谀奉承。
sometimes as much as twelve feet in length.
有时长达12英尺。