Radiolabelling
[化] 放射性标记
🗣️ 情景例句
I see. What time will she come back?
哦，那她几点会回来？
'Tis a good horse that never stumbles.
好马不失蹄。
Then the Class 2 runner dropped his stick on the ground when he was passing it on to the fourth runner.
忽然2班的运动员在传棒给第四个运动员时，把棒弄掉到了地上。