radioactivity

The discovery of radioactivity was an important milestone in the history of chemistry.

放射现象的发现是化学史上的一个重要里程碑。

Both won the Nobel Prize and had Leukemia because of radioactivity.

两人都获得了诺贝尔奖，并因为放射性而得了白血病。

It is dangerous to be exposed in large amounts of radioactivity.

暴露在大量的辐射中是危险的。

Frederic became one of her assistants and Irene taught him the techniques required to work with radioactivity.

弗雷德里克成了她的助手之一，艾琳教他在处理放射工作时需要用到的技能。