n.辐射；放射线

Radiation reached unheard-of levels. 辐射作用已达到前所未有的程度。

The most terrifying aspect of nuclear bombing is radiation. 核弹轰炸最可怕的一面是辐射。

In the accident, the workers received a heavy dose of radiation. 在这次事故中，工人受到大剂量的辐射。

The news of the radiation leak caused widespread public alarm. 辐射泄露的消息引起了公众的普遍恐慌。

The mutations in plants caused by radiation have been found in experiments. 放射线引起植物变异已在实验中被证实。