Radioactive material
放射性物质
🧩 词语组成解析
material
[mə'tɪrɪəl]
n. 材料，原料;素材;布，织物;适当人选;
adj. 物质的;肉体的;重要的，决定性的;辩证的，推论的;
🗣️ 情景例句
I'm really glad to see you.
非常高兴见到 。
I still want to travel through Europe and to Asia.
我一直希望能从欧洲经由亚洲旅行。
He led me into his room and hurriedly hid a large parcel under his desk.
他把我领进屋，慌忙把一个大包藏到了桌子下面。