原材料的英文翻译是 raw materials。它的来源可能源自生产和加工行业，指的是未经加工或加工初期的原材料，例如：

Iron ore is a raw material for the production of steel. (铁矿石是钢铁生产的原材料。)

We have a shortage of raw materials for the manufacture of paper. (我们缺少造纸原材料。)

The cost of raw materials has increased significantly in recent years. (近年来，原材料成本大幅上升。)

希望以上回答对您有帮助。