material n.材料；原料；素材；资料；题材；物质adj.物质的；重要的；关键的；肉体上的；实质性的
双语例句
The radioactive material is stored in a special radiation-proof container. 放射性材料贮存在防辐射的特殊容器内。
Tongchuan city officials believe the radioactive material - and its protective container - are likely to have been melted down. 铜川市官员认为，这快放射性材料，及其保护外壳，可能已经被熔化了。
