People who give money, goods, or help to support a cause

自愿为某项事业捐赠金钱、物资或帮助的人

People who provide blood, tissue, or organs for transplantation

捐献血液、组织或器官用于移植的人

An item or vehicle used to supply spare parts to another

作为零件来源用于维修其他设备的物品或车辆

Species that donate electrons, a group, or a radical in reactions

在反应中提供电子、基团或自由基的物质