Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
How would you pack the goods we have ordered?
你们对我们这批订货如何包装？
Never trust another what you should do yourself.
自己应该做的事，决不要委托别人做。
I invited him here. Zheng Jie has some interesting plans. But let's talk more over supper.
我邀请他来的。郑杰有一些有趣的计划。不过，我们不是在吃晚饭的时候再谈吧。