Radiolabel
vt.[化]用放射性同位素给…示踪或做标记
🗣️ 情景例句
Please have two window seats placed aside for us.
请为我们保留两个靠窗口的位子。
That's ok fine.
挺好的。
You can smoke in the entrance hall. Or outside, of course.
你可以在门厅里吸烟。当然，你也可以在室外吸烟。